Black Oxide Fasteners | McMaster-Carr


Hex	External Hex	Phillips

Slotted	Torx	Tamper- Resistant Torx

Torx Plus	External 12-Point	External Square

Tamper- Resistant Hex	Square	Hex with Pilot Recess

Tamper- Resistant Torx Plus

	Head Diameter Head Diameter

	Thread Direction Thread Direction

	Right Hand
	Left Hand
	Right Hand and Left Hand

	Thread Pitch Thread Pitch

	Thread Type Thread Type

	Head Height Head Height

	Drive Size Drive Size

	Specifications Met Specifications Met

	Thread Spacing Thread Spacing

Coarse

Fine

Extra Fine

	Fastener Strength Grade/Class Fastener Strength Grade/Class

	Tensile Strength Tensile Strength

	Thread Fit Thread Fit

	Hardness Hardness

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
Compliant

DFARS Specialty Metals
COTS-Exempt

	Thread Length Thread Length

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16,313 Products

Socket Head Screws

Alloy Steel Socket Head Screws

The standard for high-strength fastening.

Left-Hand Threaded Alloy Steel Socket Head Screws

Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening.

Torx Alloy Steel Socket Head Screws

A Torx-Plus drive has more points of contact than a hex drive, allowing you to tighten these screws with less slippage or damage to the recess.

18-8 Stainless Steel Socket Head Screws

Use these general purpose 18-8 stainless steel screws for a variety of fastening applications. They have good chemical resistance.

Alloy Steel Low-Profile Socket Head Screws

Made of alloy steel, these low-profile screws are nearly twice as strong as their stainless steel counterparts. With half the height of a standard socket head, these low-profile screws fit in tight spaces.

Alloy Steel Ultra-Low-Profile Socket Head Screws

Made from alloy steel, these screws are nearly twice as strong as stainless steel low-profile screws. With a head height one-third the size of a standard socket head, they fit in the tightest spaces.

Flanged Socket Head Screws

These general purpose flanged screws distribute pressure where the screw meets the surface, eliminating the need for a washer.

Serrated-Flange Socket Head Screws

Serrations under the head grip the material's surface for mild vibration resistance. The flange distributes pressure across the material's surface, eliminating the need for a washer.

Alloy Steel Thread-Locking Socket Head Screws

With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are nearly two and a half times stronger than stainless steel thread-locking screws. They have a thread locker to prevent loosening from vibration.

Alloy Steel Wire-Lockable Socket Head Screws

With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are more than twice as strong as stainless steel wire-lockable screws. These resist vibration better than any other socket head screw.

Alloy Steel Socket Head Screws with Split Lock Washer

With a tensile strength of 180,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and more than two and a half times stronger than stainless steel screws with split lock washer. The split lock washer helps to resist vibration.

Socket Head Screws with Flat Washer

A freely rotating washer distributes pressure over a wider area than a flange, preventing damage to your material's surface.

Brass-Tip Alloy Steel Socket Head Screws

The nonmarring brass tip is electrically conductive and harder than nylon, but soft enough to conform to most surfaces and reduce damage from metal-on-metal contact.

Nylon-Tip Alloy Steel Socket Head Screws

Nonconductive and softer than brass, the nylon tip reduces vibration and eliminates damage from metal touching metal.

Rounded Head Screws

Metric 18-8 Stainless Steel
Button Head Hex Drive Screws

18-8 Stainless Steel Button Head Hex Drive Screws

18-8 stainless steel button head screws have good chemical resistance and may be mildly magnetic.

Alloy Steel Button Head Hex Drive Screws

Metric Alloy Steel Button Head Hex Drive Screws

These metric alloy steel screws are nearly twice as strong as stainless steel button head screws.

18-8 Stainless Steel Pan Head Phillips Screws

18-8 stainless steel pan head screws have good chemical resistance and may be mildly magnetic.

Metric 18-8 Stainless Steel Pan Head Phillips Screws

Made from 18-8 stainless steel, these metric pan head screws have good chemical resistance and may be mildly magnetic.

Mil. Spec. Stainless Steel Pan Head Phillips Screws

Choose these screws for their adherence to strict military standards for material and construction.

Steel Pan Head Phillips Screws

These steel pan head screws are coated for corrosion resistance.

18-8 Stainless Steel Extra-Wide
Truss Head Phillips Screws

These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. The extra-wide truss head distributes holding pressure to reduce the likelihood of crushing thin material.

Metric Steel Button Head Torx Screws

The Torx or Torx-Plus drive on these metric screws have more points of contact than other drives, allowing you to tighten them without damaging the recess.

Alloy Steel Button Head Torx Screws

Made from alloy steel, these screws are three times stronger than standard steel button head Torx screws. A Torx-Plus drive has more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

Metric Steel Pan Head Torx Screws

These metric screws have a Torx drive for more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

Steel Narrow Cheese Head Slotted Screws

With a narrower head than pan head screws, these cheese head screws fit in tight spaces, such as in electrical panels and next to flanges and raised surfaces.

Alloy Steel Flanged Button Head Screws

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws. They have a flange that distributes pressure across a wide surface, eliminating the need for a separate washer.

Metric Alloy Steel Flanged Button Head Screws

These metric alloy steel screws are nearly twice as strong as stainless steel button head screws. They have a flange that distributes pressure across a wide surface, eliminating the need for a separate washer.

Alloy Steel Tamper-Resistant Button Head Torx Screws

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws. Their tamper-resistant Torx drive (also known as a pin-in Torx drive) makes them difficult to remove without special tools.

Metric Alloy Steel Tamper-Resistant
Button Head Torx Screws

Nearly twice as strong as stainless steel button head screws, these metric screws are made from alloy steel. Their tamper-resistant Torx drive (also known as a pin-in Torx drive) makes them difficult to remove without special tools.

Alloy Steel Tamper-Resistant
Button Head Hex Drive Screws

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws.

Alloy Steel Thread-Locking
Button Head Hex Drive Screws

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws.

Hex Head Screws

High-Strength Grade 8 Steel Hex Head Screws

Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws.

Medium-Strength Grade 5 Steel Hex Head Screws

Twice as strong as low-strength steel screws, these screws are suitable for fastening most machinery and equipment.

18-8 Stainless Steel Hex Head Screws

Use these general purpose 18-8 stainless steel screws for a variety of fastening applications. They have good chemical resistance.

Extreme-Strength Steel Flanged Hex Head Screws

Comparable in strength to Grade 9 screws, these are about 20% stronger than high-strength steel screws and often used in heavy duty applications, such as stamping and earth-moving equipment. The flange eliminates the need for a washer.

High-Strength Metric Steel
Serrated-Flange Hex Head Screws

Choose these metric screws for high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are about 10% stronger than medium-strength steel screws. Their serrated flange helps to resist vibration.

Steel Wire-Lockable Hex Head Screws

These Grade 5 steel screws are over 70% stronger than our stainless steel wire-lockable hex head screws. Wire these screws together through the hole in the head to get more vibration resistance than any other screw.

Flat Head Screws

18-8 Stainless Steel Hex Drive Flat Head Screws

These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic.

Metric 316 Stainless Steel Hex Drive Flat Head Screws

More corrosion resistant than 18-8 stainless steel screws, these metric screws have excellent resistance to chemicals and salt water. They may be mildly magnetic.

Alloy Steel Hex Drive Flat Head Screws

Metric Alloy Steel Hex Drive Flat Head Screws

18-8 Stainless Steel Phillips Flat Head Screws

These screws have good chemical resistance and may be mildly magnetic.

Metric 18-8 Stainless Steel Phillips Flat Head Screws

These metric screws have good chemical resistance and may be mildly magnetic.

Mil. Spec. Stainless Steel Phillips Flat Head Screws

Choose these screws for their adherence to strict military standards for material and construction.

Metric Steel Slotted Flat Head Screws

Angled under the head, these metric screws fit in countersunk holes and sit flush with the surface of your part.

Metric Alloy Steel Torx Flat Head Screws

These metric alloy-steel screws are twice as strong as standard steel Torx flat head screws.

Alloy Steel Torx Flat Head Screws

Made from alloy steel, these screws are twice as strong as standard steel Torx flat head screws.

Tamper-Resistant Torx Flat Head Screws

With a tamper-resistant Torx or Torx Plus drive (also known as a pin-in Torx or Torx Plus drive), these screws are difficult to remove without special tools.

Alloy Steel Thread-Locking Hex Drive Flat Head Screws

Made from alloy steel, these screws are nearly twice as strong as stainless steel flat head screws.

Tapping Screws for Metal

18-8 Stainless Steel Phillips Rounded
Head Screws for Sheet Metal

18-8 stainless steel screws have good chemical resistance.

Steel Phillips Rounded Head Screws for Sheet Metal

These steel screws are available with corrosion-resistant finishes.

Phillips Flanged Extra-Wide Rounded
Head Screws for Sheet Metal

A flange under the head distributes holding pressure and reduces the risk of crushing thin metal.

Rounded Head Screws with Washer for Sheet Metal

A free-rotating, permanently attached washer distributes holding pressure over a wider area than a flange and remains stationary to prevent scratching the material surface as you tighten the screw.

Steel Phillips Flat Head Screws for Sheet Metal

These steel screws are available with corrosion-resistant finishes.

Steel Oval Head Screws for Sheet Metal

These steel screws have a black-oxide finish to resist corrosion in dry environments.

Steel Flat Head Drilling Screws for Metal

These steel screws save you time and effort by drilling their own holes and fastening in a single operation.

Oval Head Drilling Screws for Metal

A decorative rounded top provides a finished appearance.

Steel Phillips Flat Head Thread-Cutting Screws for Metal

These steel screws cut threads in drilled holes as they’re turned, so they require less driving torque and cause less stress on your material than thread forming screws.

Thread-Forming Screws for Plastic

Steel Phillips Rounded Head
Thread-Forming Screws for Plastic

Stainless Steel Torx Rounded Head
Thread-Forming Screws for Plastic

18-8 stainless steel screws have good chemical resistance.

Steel Torx Rounded Head
Thread-Forming Screws for Plastic

These steel screws have a black-oxide or zinc-plated finish to resist corrosion.

Steel Flat Head Thread-Forming Screws for Plastic

These steel screws are beveled under the head for use in countersunk holes.

Screws for Wood

Steel Square-Drive Flat Head Screws for Wood

Beveled under the head for use in countersunk holes, these steel screws press threads into material for a tight, secure hold.

Steel Hex Head Screws for Wood

These steel screws have corrosion-resistant finishes.

Rounded Head Screws for
Particleboard and Fiberboard

These Phillips head screws have a decorative rounded top that provides a finished appearance.

Flat Head Screws for Particleboard and Fiberboard

Screws are beveled under the head for use in countersunk holes.

Set Screws

Alloy Steel Cup-Point Set Screws

Made from alloy steel, these inch size set screws have a thin edge that digs into hard surfaces for a secure hold.

Alloy Steel Thread-Locking Cup-Point Set Screws

These alloy steel set screws have a thin edge that digs into hard surfaces for a secure hold. A nylon locking element grips threads to resist loosening.

Metric Alloy Steel Thread-Locking Cup-Point Set Screws

Made from alloy steel, these metric set screws have a thin edge that digs into hard surfaces for a secure hold. They have a nylon locking patch that grips threads to resist loosening.

Alloy Steel Knurl-Grip Cup-Point Set Screws

Made from black-oxide alloy steel, these set screws resist corrosion in dry environments. They dig into hard surfaces for a secure hold and have serrations on the cup edge that grip the material surface to resist loosening.

Metric 18-8 Stainless Steel Flat-Tip Set Screws

These metric 18-8 stainless steel set screws are chemical resistant. The tip makes good contact on flat surfaces and allows you to make frequent adjustments with minimal surface damage.

Alloy Steel Flat-Tip Set Screws

The tip makes good contact on flat surfaces and allows you to make frequent adjustments with minimal surface damage.

Thread-Locking Flat-Tip Set Screws

A nylon locking patch grips threads to resist loosening.

Alloy Steel Nylon-Tip Set Screws

These alloy steel set screws have an extra-soft nylon tip, which minimizes the damage that can occur from metal-on-metal contact. Use them set screws on soft surfaces such as aluminum.

Metric Alloy Steel Nylon-Tip Set Screws

Available in metric sizes, these alloy steel set screws have an extra-soft nylon tip that minimizes the damage that can occur from metal-on-metal contact. Use them on soft surfaces such as aluminum.

Alloy Steel Brass-Tip Set Screws

With a tip that's harder than nylon and silver, these alloy steel set screws provide a secure hold on hard surfaces. The body has a black-oxide finish to resist corrosion in dry environments.

Metric Alloy Steel Brass-Tip Set Screws

These metric set screws have a brass tip, which is harder than nylon and silver, for a secure hold on hard surfaces. The body has a black-oxide finish to resist corrosion in dry environments.

Alloy Steel Oval-Tip Set Screws

Made of alloy steel, these set screws are often used in U-shaped and V-shaped grooves and on other sloped or angled surfaces. The oval tip allows for frequent adjustments with minimal surface damage.

Alloy Steel Cone-Point Set Screws

These alloy steel set screws have a pointed tip that wedges into the contact surface for a secure hold on soft materials such as brass.

Alloy Steel Extended-Tip Set Screws

Also known as half dog-point set screws, these set screws have a protruding tip that locks within a mating hole or slot to keep parts aligned.

Square-Head Extended-Tip Set Screws

Use the square head to turn these screws by hand, or use a wrench when you need more torque. Also known as half dog-point set screws, they have a protruding tip that locks within a mating hole or slot to keep parts aligned.

Alloy Steel Extra-Long Extended-Tip Set Screws

Also known as full dog-point set screws, the tip is twice as long as the tip on other extended-tip set screws for greater engagement in deep mating holes.

Alloy Steel Ball-Point Set Screws

A rolling ball swivels 360° to minimize surface damage and allow for slight adjustments without loosening the screw.

Alloy Steel Hollow-Lock Set Screws

Also known as jam set screws, these lock other screws in place, hold pins, and adjust spring tension. A black-oxide finish provides corrosion resistance in dry environments.

Large-Diameter Swivel-Tip Set Screws

A wide tip provides more gripping power than standard swivel-tip set screws. To use, remove the tip, thread the screw through the hole, and attach the tip on the other side.

Alloy Steel Low-Profile Swivel-Tip Set Screws

These set screws have a low-profile flat-faced ball tip for use in low-clearance applications.

Swivel-Tip Set Screws

The tip is narrow to pass through threaded holes.

General Purpose Shoulder Screws

Alloy Steel Shoulder Screws

Comparable in strength to Grade 8 steel. These screws have inch thread sizes.

Metric Alloy Steel Shoulder Screws

Comparable to Class 12.9 steel.

Metric Same-Size Thread Alloy Steel Shoulder Screws

The metric-sized threads on these screws are the same diameter as the shoulder. Comparable in strength to Class 12.9 steel.

Same-Size Thread Alloy Steel Shoulder Screws

With threads the same diameter as the shoulder, these inch-sized screws can handle heavy loads. They’re comparable to Grade 8 steel.

Short-Thread Alloy Steel Shoulder Screws

Use these screws in thin materials; they have a shorter threaded portion than our standard shoulder screws. They’re comparable in strength to Grade 8 steel.

Alloy Steel Shoulder Screws with Material Certification

These shoulder screws come with a traceable lot number and material test report. Similar in strength to Grade 8 steel.

Metric 18-8 Stainless Steel Shoulder Screws

These screws have metric thread sizes. They are 18-8 stainless steel for good chemical resistance.

18-8 Stainless Steel Shoulder Screws

Made from 18-8 stainless steel, these inch-sized shoulder screws have good chemical resistance.

Same-Size Thread 18-8
Stainless Steel Shoulder Screws

With inch-sized threads the same diameter as the shoulder, these screws can handle heavy loads. They’re 18-8 stainless steel for good chemical resistance.

316 Stainless Steel Shoulder Screws

More corrosion resistant than 18-8 stainless steel shoulder screws, these have excellent resistance to chemicals and salt water. These screws have inch thread sizes.

Metric 316 Stainless Steel Shoulder Screws

For metric thread sizes with excellent resistance to chemicals and salt water, choose these 316 stainless steel shoulder screws.

Low-Profile Shoulder Screws

The head height of these screws is about two-thirds the head height of a standard shoulder screw. Use them in low-clearance applications such as inside machines.

Metric Low-Profile Shoulder Screws

These metric screws have a head height that's about two-thirds the head height of a standard shoulder screw. Use them in low-clearance applications such as inside machines.

Ultra-Low-Profile Shoulder Screws

These have a head height about one-third the head height of a standard shoulder screw.

Alloy Steel Thread-Locking Shoulder Screws

A locking element on the threads adds friction to resist loosening. Comparable to Grade 8 steel, these alloy steel shoulder screws are the strongest we offer.

Metric Alloy Steel Thread-Locking Shoulder Screws

Available in metric sizes, these screws have a locking element on the threads that adds friction to resist loosening. Comparable to Grade 8 steel, they are the strongest screws we offer.

Alloy Steel Precision Shoulder Screws

Comparable to Grade 8 steel, these screws are the strongest precision shoulder screws we offer.

Binding Barrels and Screws

Super-Corrosion-Resistant 316
Stainless Steel Binding Barrels

Use these barrels with a screw you already have or pair with a different type of screw to create a custom fastener. Made from 316 stainless steel, they have excellent chemical resistance and can be used in saltwater environments.

Super-Corrosion-Resistant 316 Stainless
Steel Binding Barrels and Screws

These include a barrel and a screw with an extra-wide (truss) head. Made from 316 stainless steel, they have excellent chemical resistance and can be used in saltwater environments.

Hex Drive Binding Barrels and Screws

Use these hex drive screws and binding barrels as a low-profile alternative to standard nut and bolt combinations.

Extensions for Low-Profile Binding Barrels

Add length to a binding barrel.

Stainless Steel Low-Profile Binding Barrels and Screws

Stainless steel binding barrels and screws have excellent corrosion resistance in most environments.

Steel Low-Profile Binding Barrels and Screws

An unthreaded barrel allows quick assembly with a press or a hammer.

Binding Barrels and Screws for Wood

Create strong joints in wood and wood composite.

Tamper-Resistant One-Way Binding Barrels and Screws

Install these binding barrels and screws with a standard slotted screwdriver. They require a special tool to remove.

Thumb Screws

Metric Steel Low-Profile Knurled-Head Thumb Screws

These metric thumb screws have a thin, knurled head for use in low-clearance applications. They have a black-oxide finish to resist corrosion in dry environments.

Steel Low-Profile Knurled-Head Thumb Screws

A thin, knurled head allows these thumb screws to be used in low-clearance applications. They have a black-oxide finish to resist corrosion in dry environments.

Metric Steel Raised Knurled-Head Thumb Screws

These metric thumb screws have a raised head that makes them easy to grip. A black-oxide finish provides corrosion resistance in dry environments.

Steel Raised Knurled-Head Thumb Screws

A raised head makes these thumb screws easy to grip. They have a black-oxide finish to resist corrosion in dry environments.

Steel High-Profile Knurled-Head Thumb Screws

These steel thumb screws have a black-oxide finish to resist corrosion in dry environments.

Metric Four-Arm Extended-Tip Thumb Screws

These metric thumb screws have arms that provide a flat surface to push your fingers against.

Four-Arm Extended-Tip Thumb Screws

Arms provide a flat surface to push your fingers against.

Steel Knurled-Head Extended-Tip Thumb Screws

These steel thumb screws have a black-oxide finish to resist corrosion in dry environments.

Large-Diameter Swivel-Tip Thumb Screws

A wide tip provides more gripping power than standard swivel-tip thumb screws. To use, remove the tip, thread the screw through the hole, and attach the tip on the other side.

Ultra-Flexible Swivel-Tip Thumb Screws

A large swivel angle allows these thumb screws to make better contact with angled and uneven surfaces than nonremovable swivel-tip thumb screws.

Swivel-Tip Thumb Screws

For maximum contact with angled and uneven surfaces, the tip swivels in all directions. The tip is narrow so it will fit through threaded holes.

Steel Hex-Head Thumb Screws

These steel thumb screws have a black-oxide finish to resist corrosion in dry environments.

Latching Thumb Screws

The head fits through a slit in a latch or panel to hold it in place.

Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts

Medium-Strength Grade 5 Steel
Square-Neck Carriage Bolts

Twice as strong as low-strength steel bolts, these bolts are suitable for fastening most machinery and equipment. Carriage bolts have a smooth, rounded head for a finished look. The square neck keeps these bolts from turning when tightening a nut.

Alloy Steel 12-Point Screws

Good for high-strength fastening, these screws are made from alloy steel comparable in strength to Grade 9 steel. The head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw.

Ribbed Elevator Bolts

Ribs under the head dig into the surface of soft metal and plastic to keep these bolts from turning when tightening a nut. Commonly used in tight spaces with moving parts, such as grain elevators and other belting systems, elevator bolts have a smooth, low-profile head that provides a flush fit when installed.

T-Bolts

Also known as tank-strap bolts, these T-bolts are commonly used with a band clamp or a strap to hold fuel tanks and other objects in place.

T-Bolts with Collar

Also known as clamping pins, these bolts have a collar that slides along the shaft and can be welded in place to clamp work in place and prevent over torquing.

Hex Nuts

Metric Medium-Strength Steel Hex Nuts—Class 8

Class 8 nuts are comparable in strength to Class 8.8 bolts and are suitable for fastening most machinery and equipment.

Medium-Strength Steel Hex Nuts—Grade 5

These nuts are suitable for fastening most machinery and equipment.

Metric Fine-Thread Medium-Strength
Steel Hex Nuts—Class 8

High-Strength Steel Hex Nuts—Grade 8

These nuts are about 25% stronger than medium-strength steel nuts.

Metric High-Strength Steel Hex Nuts—Class 10

About 25% stronger than medium-strength steel nuts, these nuts are comparable in strength to class 10.9 nuts.

Mil. Spec. High-Strength Steel Hex Nuts

Choose these nuts for their adherence to strict military standards for material and construction.

Low-Strength Steel Hex Nuts

About half the strength of medium-strength steel nuts, these nuts are for light duty fastening applications.

18-8 Stainless Steel Hex Nuts

These nuts have good chemical resistance and may be mildly magnetic.

Metric 18-8 Stainless Steel Hex Nuts

These nuts have good chemical resistance and may be mildly magnetic. Metric 18-8 stainless steel is also known as A2 stainless steel.

Metric Fine-Thread 18-8 Stainless Steel Hex Nuts

Super-Corrosion-Resistant 316 Stainless Steel Hex Nuts

These nuts have excellent chemical resistance and can be used in saltwater environments.

Metric Super-Corrosion-Resistant
316 Stainless Steel Hex Nuts

These metric nuts have good chemical resistance and may be mildly magnetic.

Thin Hex Nuts

18-8 Stainless Steel Thin Hex Nuts

These nuts have good chemical resistance and may be mildly magnetic.

Metric 18-8 Stainless Steel Thin Hex Nuts

Useful in low-clearance applications, these metric nuts are roughly half the height of standard hex nuts, but aren’t as strong. All are 18-8 stainless steel, which is nearly as strong as steel but won’t rust in outdoor, washdown, and other corrosive environments.

Metric Fine-Thread 18-8 Stainless Steel Thin Hex Nuts

Made with fine-pitch threads, vibration is less likely to loosen these metric nuts than those with coarse-pitch threads since the threads sit closer together. Also called jam nuts, they are roughly half the height of standard hex nuts, so they’re good for applications with low clearance.

Left-Hand Threaded 18-8 Stainless Steel Thin Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Mil. Spec. 18-8 Stainless Steel Thin Hex Nuts

Choose these nuts for their adherence to strict military standards for material and construction.

Super-Corrosion-Resistant 316
Stainless Steel Thin Hex Nuts

These nuts have excellent chemical resistance and can be used in saltwater environments.

Low-Strength Steel Thin Hex Nuts

These nuts should be used for light duty fastening applications, such as securing access panels.

Left-Hand Threaded Low-Strength Steel Thin Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They’re Grade 2 steel, so they can be used for fastening panels and other light duty fastening applications

Extra-Wide Hex Nuts

Extreme-Strength Steel Extra-Wide Hex Nuts—Grade 2H

These nuts are comparable in strength to Grade 9 bolts.

Low-Strength Steel Extra-Wide Hex Nuts

About half the strength of medium-strength steel extra-wide hex nuts, use these nuts for light duty fastening applications, such as securing access panels.

Extreme-Strength Steel Extra-Wide Hex
Nuts for Structural Applications—Grade DH

High-Strength Steel Extra-Wide Hex Nuts
for Structural Applications—Grade C

Narrow Hex Nuts

18-8 Stainless Steel Narrow Hex Nuts

These 18-8 stainless steel nuts have good chemical resistance and may be mildly magnetic.

Super-Corrosion-Resistant 316
Stainless Steel Narrow Hex Nuts

More corrosion resistant than 18-8 stainless steel nuts, these nuts have excellent resistance to chemicals and salt water.

Steel Narrow Hex Nuts

Also known as small-pattern hex nuts, these are about 20% narrower than standard hex nuts for use in tight spaces where standard hex nuts won't fit.

Low-Strength Steel Extra-Wide Thin Hex Nuts

Use these nuts for light duty fastening applications, such as securing access panels.

Locknuts

18-8 Stainless Steel Nylon-Insert Locknuts

These locknuts have good chemical resistance.

High-Strength Steel Nylon-Insert Locknuts—Grade 8

Includes inch thread sizes. These Grade 8 steel locknuts are 25% stronger than our medium-strength steel nylon-insert locknuts.

Metric Stainless Steel Locknuts
with External-Tooth Lock Washer

These metric stainless steel locknuts have good chemical resistance and may be mildly magnetic.

Metric Steel Nonmarring Locknuts
with Spring-Lock Washer

A conical washer acts as a spring to add tension between the nut and the material surface for easy installation and mild vibration resistance. These metric locknuts have a smooth rim to resist scratching materials when tightened.

Steel Nonmarring Locknuts with Spring-Lock Washer

These locknuts have a curved washer that acts as a spring for easy installation and mild vibration resistance. The smooth rim makes them less likely to scratch materials when tightened than locknuts with a tooth lock washer.

High-Strength Steel Top-Lock
Distorted-Thread Locknuts

Comparable in strength to Grade 8 bolts, these locknuts are about 25% stronger than medium-strength steel locknuts.

Medium-Strength Steel Top-Lock
Distorted-Thread Locknuts—Grade 5

These locknuts have an irregularly shaped thread at the top of the nut that grips the bolt for a stronger hold than nylon-insert locknuts.

High-Strength Steel Center-Lock
Distorted-Thread Locknuts—Grade 8

These Grade 8 locknuts are about three times stronger than low-strength steel distorted-thread locknuts.

Stainless Steel Flex-Top Locknuts for Heavy Vibration

Made from 18-8 stainless steel, these flex top locknuts have good chemical resistance and may be mildly magnetic.

Steel Flex-Top Locknuts for Heavy Vibration

Threads at the top of these locknuts expand to grip the bolt on all sides for a stronger hold than distorted thread locknuts.

Metric Steel Flex-Top Locknuts for Heavy Vibration

Threads at the top of these metric locknuts expand to grip the bolt on all sides for a stronger hold than distorted-thread locknuts.

Flange Nuts

High-Strength Steel Serrated
Flange Locknuts—Grade 8

These nuts are about 25% stronger than medium-strength steel flange locknuts.

Low-Strength Steel Serrated Flange Locknuts

About half the strength of medium-strength steel flange locknuts, these are for light duty fastening applications, such as securing access panels.

Stainless Steel Nylon-Insert Flange Locknuts

High-Strength Steel Distorted-Thread Flange Locknuts

These flange locknuts are comparable in strength to Grade 8 bolts.

Metric High-Strength Steel Flange Nuts—Class 10

Also known as collar nuts, these metric nuts have a flange that distributes pressure across the surface, so you don't need a washer. Made of high-strength Class 10 steel, they’re about 25% stronger than medium-strength steel flange nuts.

Low-Strength Steel Flange Nuts

About half the strength of medium-strength steel flange nuts, use these nuts in light duty fastening applications, such as securing access panels.

Metric Low-Strength Steel Flange Nuts

About half the strength of medium-strength steel flange nuts, use these metric nuts in light duty fastening applications, such as securing access panels.

Steel High-Torque 12-Point Flange Nuts

These flange nuts have a black-oxide finish for mild corrosion resistance in dry environments.

Rotating Flange Nuts

The nut head rotates while the flange remains stationary to prevent scratching the material surface as you tighten the nut.

Steel Leveling Flange Nuts

These flange nuts have a black-oxide finish for mild corrosion resistance in dry environments.

Coupling Nuts

Metric Medium-Strength Steel Coupling Nuts—Class 8

Choose these locknuts to fasten standard metric threads. They’re Class 8 steel, so they can be used in most fastening applications.

Low-Strength Steel Coupling Nuts

About half the strength of medium-strength steel coupling nuts, these nuts are for light duty fastening applications.

Metric Low-Strength Steel Coupling Nuts

For light duty applications, choose these metric-sized coupling nuts.

Metric 18-8 Stainless Steel Coupling Nuts

These metric coupling nuts have good chemical resistance.

Round Coupling Nuts

A smooth rounded body provides a finished look.

Steel Extra-Wide High-Hex Cap Nuts

Known for their strength, these steel cap nuts have a black-oxide finish to resist corrosion in dry environments.

Knurled-Head Thumb Nuts

Metric 18-8 Stainless Steel
Flanged Knurled-Head Thumb Nuts

These metric thumb nuts have good chemical resistance. The flange distributes pressure over a large area to reduce stress on your part.

18-8 Stainless Steel Flanged Knurled-Head Thumb Nuts

These thumb nuts have good chemical resistance. The flange distributes pressure over a large area to reduce stress on your part.

18-8 Stainless Steel Knurled-Head Thumb Nuts

These thumb nuts have good chemical resistance and may be mildly magnetic.

Metric 18-8 Stainless Steel Knurled-Head Thumb Nuts

Made from 18-8 stainless steel, these metric thumb nuts have good chemical resistance and may be mildly magnetic.

Steel High-Torque Low-Profile Thumb Nuts

These nuts have a black-oxide finish for mild corrosion resistance in dry environments.

Low-Profile Thumb Nuts

Use these thumb nuts in low-clearance applications or jam one against another nut to hold it in place.

Hex Panel Nuts

Stainless Steel Hex Panel Nuts

All of these stainless steel panel nuts have some chemical resistance.

Steel Hex Panel Nuts

These steel panel nuts are zinc plated for corrosion resistance.

Push-Button Slide-Adjust Nuts

Flanged Push-Button Slide-Adjust Nuts

A flange distributes the load over a large area and reduces stress where the nut meets the material surface.

Knurled Push-Button Slide-Adjust Nuts

Knurls provide a slip-resistant surface for controlled adjustment.

Hex Push-Button Slide-Adjust Nuts

These nuts can be tightened with a wrench once positioned by hand.

Washers

General Purpose Washers

Metric General Purpose Washers

Use these metric washers to evenly distribute the load under bolt or screw heads and nuts when fastening. They can also act as spacers.

Oversized Washers

Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses for covering oversized holes or for use as spacers and levelers.

Metric Oversized Washers

Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses. Use them to cover oversized holes, hold heavy fastening loads, or as spacers and levelers.

SAE Washers

SAE washers generally have a smaller ID and OD than USS washers.

Mil. Spec. Washers

Choose these washers for their adherence to strict military standards for material and construction.

USS Washers

USS washers generally have a larger ID and OD than SAE washers.

Finishing Countersunk Washers

Metric Finishing Countersunk Washers

Square Washers

Square washers fit into slots and channels and have flat sides to keep them from rotating.

Oversized Clipped Washers

With greater diameters and/or thicknesses than general purpose washers, these washers cover oversized holes or act as spacers and levelers. Clipped to fit where standard washers can’t, they won’t rotate when you position the flat edge against a flat surface.

Clipped Washers

Clipped to fit where standard washers can't, these won't rotate when you position the flat edge against a flat surface.

Sleeve Washers for Soft Material

Reinforce holes in soft material to keep them from collapsing around screws.

Easy-Install Slotted Washers

A slot in the side allows you to install and remove these washers without completely disassembling your joint.

Lock Washers

Split Lock Washers

As a screw is tightened, these washers flatten to add tension to the joint and prevent loosening from small amounts of vibration.

Mil. Spec. Split Lock Washers

Choose these washers for their adherence to strict military standards for material and construction.

Split Lock Washers for Socket Head Screws

Metric Internal-Tooth Lock Washers

Internal teeth dig into the screw head while the smooth outside edge won't snag objects. Use with metric fasteners that have small heads, such as fillister and cheese head screws.

External-Tooth Lock Washers

Teeth on the outside edge of the washer bite into the screw head and joint for a tight grip.

Countersunk External-Tooth Lock Washers

The teeth on these washers firmly grip heads of 82° flat head countersunk screws.

Internal-/External-Tooth Lock Washers

The combination of internal and external teeth boosts gripping power to maintain a tight hold and provide more vibration resistance than other tooth lock washers. Use with fasteners that have heads large enough to make contact with the external teeth, such as pan, button, and binding head screws.

Belleville Spring Lock Washers

Also known as conical washers, these have a slightly cupped shape that gives them spring-like flexibility to grip tighter than split and tooth lock washers.

Wedge Lock Washers

Also known as NORD-LOCK® washers, these two-piece washers provide more locking power than split, tooth, and spring lock washers. Wedges on the inside lock the two pieces together, and serrations on the exterior grip surfaces to resist loosening from high vibration and shifting.

Leveling and Wave Washers

Leveling Washers

Leveling Washers for I-Beams

Triple-Wave Washers

With three points of surface contact, these washers provide more stability than single-wave washers.

Single-Wave Washers

These curved, flexible washers act like springs to compensate for tolerance variations and uneven surfaces.

Threaded Rods and Studs

Medium-Strength Steel Threaded Rods—Grade B7

These Grade B7 threaded rods meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges.

High-Strength Steel Threaded Rods

These are Grade 8 threaded rods.

18-8 Stainless Steel Threaded Rods

18-8 stainless steel threaded rods have good chemical resistance.

Hex Drive Threaded Rods

A hex drive on one end allows these rods to be turned with a hex key for ease of installation.

Steel Wood Screw Threaded Studs

These studs are also known as hanger bolts—use them to hang, mount, and fasten parts to wood structures.

Pins

Dowel Pins

Use these metal dowel pins as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts.

Precision Clevis Pins

These pins combine the locking capabilities of a clevis pin with the precision diameter of a dowel pin for a tight fit.

Vibration-Resistant Slotted Spring Pins

Interlocking teeth help these pins resist sliding when exposed to vibration. They have a slot that presses closed when the pins are inserted so they don't flex after installation.

Tee Nut Inserts for Wood

Steel Tee Nut Inserts for Wood

Steel inserts have high strength for durability.

Split-Resistant Tee Nut Inserts for Hardwood

Fewer prongs than other tee nut inserts reduce the risk of splitting hardwood—these inserts have three short prongs.

Ultra-Split-Resistant Tee Nut Inserts for Hardwood

Ridges on the barrel of these inserts make them less likely to split hardwood than inserts with prongs. They're often used in wood that has been cut across the growth rings.

Thread Adapters

Inch-to-Inch Male-Female Hex Thread Adapters

Join threads with small diameters to large or course threads to fine with these inch-sized adapters.

Metric-to-Metric Male-Female Hex Thread Adapters

In addition to joining male- and female-threaded parts, these adapters can increase or decrease metric thread sizes and change the thread pitch.

Inch-to-Metric Male-Female Hex Thread Adapters

Change inch threads to metric with these adapters, or swap metric threads for inch. An external hex lets you tighten or loosen them with a wrench.

Inch-to-Inch Female Hex Thread Adapters

Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench.

Inch-to-Metric Female Hex Thread Adapters

Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench.

Metric-to-Metric Female Hex Thread Adapters

Increase or decrease metric thread size from one male-threaded part to another. Commonly used to connect two differently sized threaded rods, they have a hex-shaped body, so you can tighten them with a standard wrench.

Left-Hand to Right-Hand Female Hex Thread Adapters

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

Inch-to-Inch Male Hex Thread Adapters

Need to join two female-threaded parts, such as coupling nuts, with dissimilar inch thread sizes? Attach them to these adapters and tighten the exterior hex nut for a secure connection.

Inch-to-Metric Male Hex Thread Adapters

One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.

Metric-to-Metric Male Hex Thread Adapters

Twist these adapters onto female metric threads to change pitch or switch thread sizes.

Left-Hand to Right-Hand Male Thread Adapters

Fastener Assortments

Socket Head Screw Assortments

Hex-Drive Rounded Head Screw Assortments

These assortments include button head screws.

Flat Head Screw Assortments

Flat head screws are angled under the head to fit flush within countersunk holes.

Set Screw Assortments

Set screws exert pressure at the tip to hold objects in place.

Fastener Maintenance Assortments

Fabric Snaps

Female Fabric Snap Halves

These female snap halves create the finished button-look of a snap. Pair them with male snap halves to create a complete snap.

Male Fabric Snap Halves

Pair these male snap halves with female snap halves to make a complete snap.

Complete Fabric Snaps

Male and female snaps are included to create complete snaps.

U-Bolts

Mount these general purpose U-bolts into an existing bracket, or combine with a mounting plate for a secure hold at the mounting surface.

U-Bolts with Mounting Plates

A mounting plate provides a more secure hold at the mounting surface.

U-Bolt Mounting Plates

Add a mounting plate to your U-bolt for a more secure hold at the mounting surface.

Square U-Bolts

Suspend and route flat-bottomed objects such as strut channel and small duct.

Lead Screws and Screw Jacks

Precision Acme Lead Screws and Nuts

Also known as single-start and self-locking lead screws and nuts, these have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest.

Fast-Travel Precision Acme Lead Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start.

Metric Acme Lead Screws and Nuts

These metric lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. They're commonly found in hand-powered clamps, vises, grates, doors, and work tables.

Ball Screws and Nuts

Also known as single-start ball screws and nuts, these have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts.

Fast-Travel Ball Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start.

Self-Stopping Ball Screws and Nuts

Keep your ball screw spinning without the ball nut damaging your system. When the ball nut reaches the stop pin at either end of the ball screw, it disengages and begins to idle.

Clamping Acme Lead Screw Collars

Thread these one-piece collars onto an Acme lead screw.

Two-Piece Clamping Acme Lead Screw Collars

Mount these two-piece collars anywhere on an Acme lead screw without removing components.

Metric Clamping Acme Lead Screw Collars

Install these threaded collars on a metric lead screw to separate and position components, or use them as an end stop to limit travel.

Fabricating and Machining

T-Slot Nuts

Designed to slide into T-slot tracks on machine tool tables, use these nuts to secure clamps and workpieces.

Drop-In T-Slot Nuts

Install from the top of the T-slot track and secure with a quarter turn. Also known as quarter-turn T-slot nuts.

Secure-Hold T-Slot Nuts

After sliding the nut into a T-slot, tighten the set screw to keep it in place.

T-Slot Bolts

For quicker setups than a separate T-slot nut and stud, slide these bolts into T-slot tracks on machine tool tables.

Setup Studs

Combine these setup studs with T-slot nuts, flanged nuts, setup clamps, or setup blocks to clamp and hold workpieces, vises, and other objects onto your fixturing table. Also known as double-ended studs, they have threads on both ends.

T-Slot Nut and Setup Stud Kits

For mounting items to your machine table, these kits contain the full system of necessary components.

T-Slot Cleaners

Scrape debris out of machine table T-slots.

Drive Sleeves for Hex-Shank Masonry
Drill Bits for Tapping Screw Installation

Drive a tapping screw without removing the drill bit from your impact driver. One end holds an insert or nutdriver bit, while the other end engages with the hex-collar on the drill bit.

Hex-Shank Masonry Drill Bits
for Tapping Screw Installation

Insert these bits directly into power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks.

Rope and Chain Connectors

Low-Visibility Eyebolts—For Lifting

The matte black-oxide finish won't reflect light, allowing the eyebolts to blend into the background.

Routing Eyebolts with Nuts—Not for Lifting

Also known as nut eyebolts, these are designed for through-hole applications.

Hoist Rings—For Lifting

Designed for angular lifting, hoist rings resist stresses that would bend or break an eyebolt. They have a lifting ring that pivots 180° front to back to compensate for roll and sway when lifting heavy or unbalanced loads.

Nonswiveling Hoist Rings—For Lifting

The fixed base provides added stability and allows you to lift heavy loads with smaller thread sizes.

Wraparound Rope Cleats

Wind rope around these cleats for a secure hold.

Rod End Bolts

High-Strength Fully Threaded Rod End Bolts

These alloy steel rod end bolts have the highest tensile strength of any fully threaded rod end bolt we offer.

Corrosion-Resistant Fully Threaded Rod End Bolts

These rod end bolts are good for wet and corrosive environments—for maximum mounting flexibility, cut the fully threaded shaft to whatever length you need.

Fully Threaded Rod End Bolts

Good for general purpose applications where corrosion and high strength aren’t a concern, these rod end bolts are made of carbon steel.

Partially Threaded Rod End Bolts

Create pivoting connections in applications that require high shear strength—the partially threaded shank of these rod end bolts withstands more side force than a fully threaded shank.

Internally Threaded Rod End Bolts with Partial Threads

Also known as swing bolts and eyebolts, these internally threaded rod end bolts have no moving parts. They're designed to make pivoting or hinge movements in applications that don't need to compensate for misalignment.

Corrosion-Resistant Partially Threaded Rod End Bolts

Pivot and hinge components in wet and corrosive environments with these stainless steel or brass rod end bolts.

Flat-Shoulder Rod End Bolts

These black-oxide steel rod end bolts are heat treated for added strength.

Extension Spring Stud Anchors

A black-oxide finish provides mild corrosion resistance.

Swiveling Extension Spring Stud Anchors

A black-oxide finish provides mild corrosion resistance.

Socket Head Screws

Alloy Steel Socket Head Screws

Left-Hand Threaded Alloy Steel Socket Head Screws

Torx Alloy Steel Socket Head Screws

18-8 Stainless Steel Socket Head Screws

Alloy Steel Low-Profile Socket Head Screws

Alloy Steel Ultra-Low-Profile Socket Head Screws

Flanged Socket Head Screws

Serrated-Flange Socket Head Screws

Alloy Steel Thread-Locking Socket Head Screws

Alloy Steel Wire-Lockable Socket Head Screws

Alloy Steel Socket Head Screws with Split Lock Washer

Socket Head Screws with Flat Washer

Brass-Tip Alloy Steel Socket Head Screws

Nylon-Tip Alloy Steel Socket Head Screws

Rounded Head Screws

Metric 18-8 Stainless SteelButton Head Hex Drive Screws

18-8 Stainless Steel Button Head Hex Drive Screws

Alloy Steel Button Head Hex Drive Screws

Metric Alloy Steel Button Head Hex Drive Screws

18-8 Stainless Steel Pan Head Phillips Screws

Metric 18-8 Stainless Steel Pan Head Phillips Screws

Mil. Spec. Stainless Steel Pan Head Phillips Screws

Steel Pan Head Phillips Screws

18-8 Stainless Steel Extra-WideTruss Head Phillips Screws

Metric Steel Button Head Torx Screws

Alloy Steel Button Head Torx Screws

Metric Steel Pan Head Torx Screws

Steel Narrow Cheese Head Slotted Screws

Alloy Steel Flanged Button Head Screws

Metric Alloy Steel Flanged Button Head Screws

Alloy Steel Tamper-Resistant Button Head Torx Screws

Metric Alloy Steel Tamper-ResistantButton Head Torx Screws

Alloy Steel Tamper-ResistantButton Head Hex Drive Screws

Alloy Steel Thread-LockingButton Head Hex Drive Screws

Hex Head Screws

High-Strength Grade 8 Steel Hex Head Screws

Medium-Strength Grade 5 Steel Hex Head Screws

18-8 Stainless Steel Hex Head Screws

Extreme-Strength Steel Flanged Hex Head Screws

High-Strength Metric SteelSerrated-Flange Hex Head Screws

Steel Wire-Lockable Hex Head Screws

Flat Head Screws

18-8 Stainless Steel Hex Drive Flat Head Screws

Metric 316 Stainless Steel Hex Drive Flat Head Screws

Alloy Steel Hex Drive Flat Head Screws

Metric Alloy Steel Hex Drive Flat Head Screws

18-8 Stainless Steel Phillips Flat Head Screws

Metric 18-8 Stainless Steel Phillips Flat Head Screws

Mil. Spec. Stainless Steel Phillips Flat Head Screws

Metric Steel Slotted Flat Head Screws

Metric Alloy Steel Torx Flat Head Screws

Alloy Steel Torx Flat Head Screws

Tamper-Resistant Torx Flat Head Screws

Alloy Steel Thread-Locking Hex Drive Flat Head Screws

Tapping Screws for Metal

18-8 Stainless Steel Phillips RoundedHead Screws for Sheet Metal

Steel Phillips Rounded Head Screws for Sheet Metal

Phillips Flanged Extra-Wide RoundedHead Screws for Sheet Metal

Rounded Head Screws with Washer for Sheet Metal

Steel Phillips Flat Head Screws for Sheet Metal

Steel Oval Head Screws for Sheet Metal

Steel Flat Head Drilling Screws for Metal

Oval Head Drilling Screws for Metal

Steel Phillips Flat Head Thread-Cutting Screws for Metal

Thread-Forming Screws for Plastic

Steel Phillips Rounded HeadThread-Forming Screws for Plastic

Stainless Steel Torx Rounded HeadThread-Forming Screws for Plastic

Steel Torx Rounded HeadThread-Forming Screws for Plastic

Steel Flat Head Thread-Forming Screws for Plastic

Screws for Wood

Steel Square-Drive Flat Head Screws for Wood

Steel Hex Head Screws for Wood

Rounded Head Screws forParticleboard and Fiberboard

Flat Head Screws for Particleboard and Fiberboard

Set Screws

Alloy Steel Cup-Point Set Screws

Alloy Steel Thread-Locking Cup-Point Set Screws

Metric Alloy Steel Thread-Locking Cup-Point Set Screws

Alloy Steel Knurl-Grip Cup-Point Set Screws

Metric 18-8 Stainless Steel
Button Head Hex Drive Screws

18-8 Stainless Steel Extra-Wide
Truss Head Phillips Screws

Metric Alloy Steel Tamper-Resistant
Button Head Torx Screws

Alloy Steel Tamper-Resistant
Button Head Hex Drive Screws

Alloy Steel Thread-Locking
Button Head Hex Drive Screws

High-Strength Metric Steel
Serrated-Flange Hex Head Screws

18-8 Stainless Steel Phillips Rounded
Head Screws for Sheet Metal

Phillips Flanged Extra-Wide Rounded
Head Screws for Sheet Metal

Steel Phillips Rounded Head
Thread-Forming Screws for Plastic

Stainless Steel Torx Rounded Head
Thread-Forming Screws for Plastic

Steel Torx Rounded Head
Thread-Forming Screws for Plastic

Rounded Head Screws for
Particleboard and Fiberboard

Same-Size Thread 18-8
Stainless Steel Shoulder Screws

Super-Corrosion-Resistant 316
Stainless Steel Binding Barrels

Super-Corrosion-Resistant 316 Stainless
Steel Binding Barrels and Screws

Medium-Strength Grade 5 Steel
Square-Neck Carriage Bolts