Right-Hand Threaded Screws


Hex	External Hex

Phillips	Slotted

Torx	Torx Plus

Square	Tamper- Resistant Torx

External 12- Point	External Square

JIS	Drilled Spanner

Hex with Pilot Recess	Tamper- Resistant Hex

Wrench Flat	External 5- Point

One Way	Spring Plunger Wrench

Tri-Groove	Tamper- Resistant Torx Plus

Asymmetrical	Tri-Wing®

	Threading Threading

Fully Threaded

Partially Threaded

Threaded on Both Ends

Threaded on One End

	Socket Head Profile Socket Head Profile


Standard	Low

Ultra-Low	High

	Head Diameter Head Diameter

	Head Height Head Height

	Thread Pitch Thread Pitch

	Thread Type Thread Type

Metric Rounded
Trapezoidal

	Thread Spacing Thread Spacing

	Drive Size Drive Size

	Fastener Strength Grade/Class Fastener Strength Grade/Class

	Tensile Strength Tensile Strength

	Rounded Head Style Rounded Head Style


Button	Pan

Truss	Carriage

Round	Cheese

Fillister	Binding

Pancake

	Thread Fit Thread Fit

	Specifications Met Specifications Met

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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66,895 Products

Socket Head Screws

Alloy Steel Socket Head Screws

The standard for high-strength fastening.

Mil. Spec. Alloy Steel Socket Head Screws

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

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.

High-Temperature Alloy Steel
Socket Head Screws—Grade B7

These screws are specially tempered to meet ASTM A193 specifications for temperatures up to 1100° F.

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.

Mil. Spec. 18-8 Stainless Steel Socket Head Screws

Choose these screws for their adherence to strict military standards for material and construction. Screws are 18-8 stainless steel for good chemical resistance.

Cleaned and Bagged 18-8 Stainless Steel
Socket Head Screws for High Vacuum

Cleaned and double bagged in an ISO Class 5 (Fed. Std. Class 100) clean room, these screws are ready to use on chambers and components in high-vacuum systems.

Super-Corrosion-Resistant 316
Stainless Steel Socket Head Screws

More corrosion resistant than 18-8 stainless steel screws, these 316 stainless steel screws have excellent resistance to chemicals and salt water.

High-Strength A286 Stainless Steel Socket Head Screws

Often used to fasten parts in engines and turbines, these are our strongest stainless steel screws. They are comparable in strength to alloy steel with the corrosion resistance of 18-8 stainless steel.

High-Strength 316 Stainless Steel Socket Head Screws

These screws are hardened to be 40% stronger than standard 316 stainless steel screws, yet they still have excellent corrosion resistance. Use them in chemical and marine applications.

Plastic Socket Head Screws

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

Brass Socket Head Screws

Brass screws are electrically conductive, nonmagnetic, and have good corrosion resistance.

Titanium Socket Head Screws

Our most corrosion-resistant metal screws, titanium screws withstand salt water, acids, and chemicals. They have a high strength-to-weight ratio and are about 40% lighter than steel screws.

Aluminum Socket Head Screws

Aluminum screws are one-third the weight of steel and have good corrosion resistance.

Nickel Alloy Socket Head Screws

More corrosion resistant than stainless steel screws, nickel alloy screws have excellent resistance to salt water and some acids.

Bronze Socket Head Screws

Bronze screws are about 40% stronger than brass screws and provide more corrosion resistance to salt water, gases, and sewage. They are nonmagnetic and electrically conductive.

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.

18-8 Stainless Steel Low-Profile Socket Head Screws

Nearly as strong as steel, these stainless steel screws won’t rust in outdoor, washdown, and other corrosive environments. With half the height of a standard socket head, these low-profile screws fit in tight spaces.

Super-Corrosion-Resistant 316 Stainless
Steel Low-Profile Socket Head Screws

More corrosion resistant than 18-8 stainless steel screws, these 316 stainless steel screws have excellent resistance to chemicals and salt water. Use these low-profile screws where space is limited.

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.

316 Stainless Steel Ultra-Low-Profile
Socket Head Screws

More corrosion resistant than 18-8 stainless steel screws, these 316 stainless steel screws have excellent resistance to chemicals and salt water. Their ultra-low-profile lets them fit in the tightest spaces.

High-Profile Socket Head Screws

With a head one and a half times taller than a standard socket head, these screws are easier to install in deep counterbored holes and other hard-to-reach places.

Flanged Socket Head Screws

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

Exact-Grip-Length Flanged Socket Head Screws

For use where sideways forces are a concern, these screws have a precisely measured unthreaded portion (grip) for a strong hold. Their flanged head distributes pressure where the screw meets the surface, so you don't need 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.

18-8 Stainless Steel Thread-Locking
Socket Head Screws

These screws have good chemical resistance. A thread locker bonded to the threads prevents loosening from vibration.

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Locking Socket Head Screws

More corrosion resistant than 18-8 stainless steel screws, these screws have excellent resistance to chemicals and salt water. They have a thread locker to resist vibration.

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.

Stainless Steel Wire-Lockable Socket Head Screws

Stainless steel screws have excellent corrosion resistance in most environments. Wire these screws together for more vibration resistance than other types of socket head screws.

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.

Stainless Steel Socket Head
Screws with Split Lock Washer

Stainless steel screws have excellent corrosion resistance in most environments. They have a split lock washer to create tension and resist loosening from vibration.

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.

Vented Socket Head Screws

Drilled through the head and shaft, these screws vent fluid and gases trapped below the screw, making them good for vacuum applications.

High-Vacuum Cleaned-and-Bagged
Vented Socket Head Screws

Fasten these screws inside a high-vacuum system without bringing in contaminants.

Sealing Socket Head Screws

Seal out contaminants and prevent leaks—a rubber O-ring under the head prevents leaks and seals out contaminants.

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.

Vibration-Resistant Sealing Socket Head Screws

The nylon patch bonded to the threads of these socket head screws adds friction to keep vibration from loosening them, while their O-ring prevents leaks and seals out contaminants.

Socket Head Screws for Square-Drive Wrenches

No need for separate bits—these screws lock directly onto square-drive socket wrenches, reducing the risk of dropping parts during installation.

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.

Hex Drive Rounded Head 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.

Metric 18-8 Stainless Steel
Button Head Hex Drive Screws

316 Stainless Steel Button Head Hex Drive Screws

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

Metric 316 Stainless Steel
Button Head Hex Drive Screws

316 stainless steel screws resist corrosion from chemicals and salt water better than 18-8 stainless steel screws. They may be mildly magnetic.

Fine-Thread Metric 316 Stainless
Steel Button Head Hex Drive Screws

Closely spaced threads on these screws fit in holes with a fine pitch. They're not compatible with standard metric threads.

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.

Brass Button Head Hex Drive Screws

Brass button head screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Metric Brass Button Head Hex Drive Screws

Made from brass, these metric button head screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Metric Titanium Button Head Hex Drive Screws

As strong as alloy steel and about 40% lighter, these metric titanium screws are known for their high strength-to-weight ratio. They stand up to salt water, acids, and chemicals.

Titanium Button Head Hex Drive Screws

Known for their high strength-to-weight ratio, these titanium screws are as strong as alloy steel and about 40% lighter. They stand up to salt water, acids, and chemicals.

Pan Head Phillips 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.

316 Stainless Steel Pan Head Phillips Screws

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

Metric 316 Stainless Steel Pan Head Phillips Screws

These metric 316 stainless steel screws resist corrosion from chemicals and salt water better than 18-8 stainless steel screws. They 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.

JIS Stainless Steel Pan Head Screws

Made to Japanese Industrial Standards, these screws have narrower and shorter heads than standard Phillips pan head screws.

Steel Pan Head Phillips Screws

These steel pan head screws are coated for corrosion resistance.

Metric Steel Pan Head Phillips Screws

A zinc plating makes these metric pan head screws corrosion resistant in wet environments.

Mil. Spec. Steel Pan Head Phillips Screws

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

JIS Steel Pan Head Screws

Made to Japanese Industrial Standards, these screws have narrower and shorter heads than standard Phillips pan head screws.

Nylon Pan Head Phillips Screws

Nylon pan head screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric Nylon Pan Head Phillips Screws

Made from nylon, these metric pan head screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric High-Strength High-Temperature
PEEK Pan Head Phillips Screws

These metric PEEK screws are reliable in harsh environments up to 500° F and withstand acids, bases, and salt solutions. All are chemical and oil resistant, nonconductive, and lightweight.

High-Strength High-Temperature
PEEK Pan Head Phillips Screws

Reliable in harsh environments up to 500° F, PEEK screws withstand acids, bases, and salt solutions. They are chemical and oil resistant, nonconductive, and lightweight.

Impact-Resistant Polycarbonate
Pan Head Phillips Screws

Polycarbonate screws resist breaking in high-impact applications. All are chemical and oil resistant, nonconductive, and lightweight.

Metric Impact-Resistant Polycarbonate
Pan Head Phillips Screws

Made from polycarbonate, these metric pan head screws resist breaking in high-impact applications. They are chemical and oil resistant, nonconductive, and lightweight.

Brass Pan Head Phillips Screws

Brass pan head screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Metric Brass Pan Head Phillips Screws

Made from brass, these metric pan head screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Titanium Pan Head Phillips Screws

Our most corrosion-resistant screws, these titanium pan head screws withstand salt water, acids, and chemicals. They have a high strength-to-weight ratio.

Metric Titanium Pan Head Phillips Screws

The most corrosion-resistant pan head screws we offer, these metric titanium screws withstand salt water, acids, and chemicals. They have a high strength-to-weight ratio.

Extra-Wide Truss Head Phillips Screws

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

Made from 18-8 stainless steel, these metric 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.

316 Stainless Steel Extra-Wide
Truss Head Phillips Screws

More corrosion resistant than 18-8 stainless steel screws, these screws have excellent resistance to chemicals and salt water. The extra-wide truss head distributes holding pressure to reduce the likelihood of crushing thin material. Screws may be mildly magnetic.

Metric 316 Stainless Steel Extra-Wide
Truss Head Phillips Screws

These metric 316 stainless steel screws resist corrosion from chemicals and salt water better than 18-8 stainless steel screws. The extra-wide truss head distributes holding pressure to reduce the likelihood of crushing thin material. Screws may be mildly magnetic.

Decorative Round Head Phillips Screws

Stainless Steel Decorative Round Head Phillips Screws

Stainless steel screws have excellent corrosion resistance in most environments.

Steel Decorative Round Head Phillips Screws

A zinc plating provides mild corrosion resistance.

Narrow Cheese Head Phillips Screws

A narrow head allows these screws to fit in tight spaces and a deep drive lets you maximize driving power.

High-Profile Narrow Fillister Head Phillips Screws

Taller than cheese head screws, these have a deep drive to maximize driving power and a narrow diameter to fit in tight spaces.

Pan Head Slotted Screws

18-8 Stainless Steel Pan Head Slotted Screws

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

Metric 18-8 Stainless Steel Pan Head Slotted Screws

Good for use outdoors and in washdown environments, these metric 18-8 stainless steel screws are more corrosion resistant than steel and nearly as strong. Their pan-shaped head sits nearly flat on the fastened surface, so there’s no need to countersink a hole.

316 Stainless Steel Pan Head Slotted Screws

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

Metric 316 Stainless Steel Pan Head Slotted Screws

These metric 316 stainless steel pan head screws resist corrosion from chemicals and salt water better than 18-8 stainless steel screws. They may be mildly magnetic.

Steel Pan Head Slotted Screws

These pan head screws are zinc plated for corrosion resistance in wet environments.

Metric Steel Pan Head Slotted Screws

Install these metric pan head screws for a low-profile, finished look—no countersink required.

Nylon Pan Head Slotted Screws

Nylon screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric Nylon Pan Head Slotted Screws

Made from nylon, these metric screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface.

Metric Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

These metric PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface.

Brass Pan Head Slotted Screws

Brass pan head screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Metric Brass Pan Head Slotted Screws

Made from brass, these metric pan head screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Narrow Cheese Head Slotted Screws

18-8 Stainless Steel Narrow
Cheese Head Slotted Screws

More corrosion resistant than steel, and almost as strong, these 18-8 stainless steel screws have a narrower head than pan head screws to fit into tight spaces. They’re often used in electrical panels and next to flanges and raised surfaces in humid, damp, and washdown environments, but will corrode if exposed to salt water or chemicals.

316 Stainless Steel Narrow
Cheese Head Slotted Screws

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

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.

Plastic Narrow Cheese Head Slotted Screws

Made from nylon, these screws are chemical and oil resistant, nonconductive, and lightweight.

Decorative Round Head Slotted Screws

Brass Decorative Round Head Slotted Screws

Made from brass, these screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

18-8 Stainless Steel Decorative
Round Head Slotted Screws

These screws have good chemical resistance.

316 Stainless Steel Decorative
Round Head Slotted Screws

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

Steel Decorative Round Head Slotted Screws

A zinc plating provides mild corrosion resistance.

Aluminum Decorative Round Head Slotted Screws

One-third the weight of steel, aluminum screws resist corrosion in wet environments.

Nylon Decorative Round Head Slotted Screws

Nylon screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Extreme-Temperature Chemical-Resistant
PTFE Decorative Round Head Slotted Screws

PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F.

High-Profile Narrow Fillister Head Slotted Screws

18-8 Stainless Steel High-Profile
Narrow Fillister Head Slotted Screws

These screws have good chemical resistance.

316 Stainless Steel High-Profile
Narrow Fillister Head Slotted Screws

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

Steel High-Profile Narrow Fillister Head Slotted Screws

A zinc plating provides mild corrosion resistance.

Brass High-Profile Narrow Fillister Head Slotted Screws

Brass screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Plastic High-Profile Narrow Fillister Head Slotted Screws

Made from nylon, these screws are chemical and oil resistant, nonconductive, and lightweight.

Binding Head Slotted Screws

Stainless Steel Binding Head Slotted Screws

Stainless steel screws have excellent corrosion resistance in most environments.

Plastic Binding Head Slotted Screws

Plastic screws are ?chemical and oil resistant, nonconductive, and lightweight.

Brass Binding Head Slotted Screws

Brass screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Steel Binding Head Slotted Screws

A zinc plating provides mild corrosion resistance.

Low-Profile Ultra-Wide Truss Head Slotted Screws

When head height is important, these screws fit into spaces where other wide head screws won't fit. Also known as shutter screws, their ultra-wide truss head distributes the load over a large area for excellent holding pressure.

Metric Low-Profile Ultra-Wide
Truss Head Slotted Screws

Fit these metric screws into spaces where head height is important and other wide head screws won't fit. Also known as shutter screws, they have an ultra-wide truss head to distribute the load over a large area for excellent holding pressure.

Extra-Wide Truss Head Slotted Screws

Steel Extra-Wide Truss Head Slotted Screws

A zinc plating provides mild corrosion resistance.

Stainless Steel Extra-Wide Truss Head Slotted Screws

Stainless steel screws have excellent corrosion resistance in most environments.

Torx Rounded Head Screws

Metric 18-8 Stainless Steel Button Head Torx Screws

18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. A Torx drive has more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

18-8 Stainless Steel Button Head Torx Screws

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Torx and Torx-Plus drives have more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

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.

High-Strength A286 Stainless
Steel Button Head Torx Screws

A286 stainless steel screws have comparable strength to alloy steel with the corrosion and chemical resistance of 18-8 stainless steel. They have a Torx drive that has more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

Metric High-Strength A286 Stainless
Steel Button Head Torx Screws

Made from A286 stainless steel, these metric screws provide the strength of alloy steel and the corrosion and chemical resistance of 18-8 stainless steel. They have a Torx drive that has more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

Metric Stainless Steel Pan Head Torx Screws

These metric 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. Torx drives have more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

Stainless Steel Pan Head Torx Screws

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 Pan Head Torx Screws

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

Metric Painted Steel Pan Head Torx Screws

Add a decorative look when fastening parts—these metric screws have a painted head.

Painted Steel Pan Head Torx Screws

Create a decorative appearance on your finished product—the head of these screws is painted.

Combination Phillips/Slotted Rounded Head Screws

Pan Head Combination Phillips/Slotted Screws

Made from stainless steel, these screws are chemical resistant and may be mildly magnetic.

Metric Pan Head Combination Phillips/Slotted Screws

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

Decorative Round Head
Combination Phillips/Slotted Screws

These screws have a tall, domed head that provides a finished appearance. They're zinc plated to resist corrosion in wet environments.

Metric Decorative Round Head
Combination Phillips/Slotted Screws

A tall, domed head provides a finished appearance. These metric screws are zinc plated to resist corrosion in wet environments.

Sanitary Extra-Wide Truss Head Screws

Designed for use in food, pharmaceutical, and other sanitary environments, these screws have an extra-wide truss head that distributes holding pressure to reduce the likelihood of crushing thin materials.

Flanged Rounded Head Screws

Metric 18-8 Stainless Steel
Flanged Button Head Screws

Made from 18-8 stainless steel, these metric screws have good chemical resistance and may be mildly magnetic. They have a flange that distributes pressure across a wide surface, eliminating the need for a separate washer.

18-8 Stainless Steel Flanged Button Head Screws

18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. The flange distributes pressure across a wide surface, eliminating the need for a separate washer.

Metric 316 Stainless Steel Flanged Button Head Screws

These metric 316 stainless steel screws resist corrosion from chemicals and salt water better than 18-8 stainless steel screws. They have a flange that distributes pressure across a wide surface, eliminating the need for a separate washer. Screws may be mildly magnetic.

316 Stainless Steel Flanged Button Head Screws

More corrosion resistant than 18-8 stainless steel screws, these screws have excellent resistance to chemicals and salt water. They have a flange that distributes pressure across a wide surface, eliminating the need for a separate washer. Screws may be mildly magnetic.

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.

Aluminum Ultra-Wide Flanged Button Head Screws

These aluminum screws are lightweight and resist corrosion in wet environments. They have a flange that is wider and thicker than our other flanged screws, so they distribute pressure the best.

Metric Aluminum Ultra-Wide
Flanged Button Head Screws

Made from aluminum, these metric screws are lightweight and resist corrosion in wet environments. The flange is wider and thicker than our other flanged screws, so they distribute pressure the best.

Stainless Steel Ultra-Wide Flanged Button Head Screws

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. The flange is wider and thicker than our other flanged screws, so they distribute pressure the best.

Metric Stainless Steel Ultra-Wide
Flanged Button Head Screws

These metric 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. The flange is wider and thicker than our other flanged screws, so they distribute pressure the best.

Extra-Wide Flanged Button Head Screws

Comparable in diameter to a washer, the flange on these screws distributes pressure better than standard flanged screws. Made from 316 stainless steel, they have excellent resistance to chemicals and salt water. Screws may be mildly magnetic.

Metric Extra-Wide Flanged Button Head Screws

With a flange comparable in size to a washer, these metric screws distribute pressure better than standard flanged screws. Made from 316 stainless steel, they have excellent resistance to chemicals and salt water. Screws may be mildly magnetic.

Rounded Head Screws with Lock Washer

Stainless Steel Pan Head Screws
with Internal-Tooth Lock Washer

These stainless steel screws have good chemical resistance and may be mildly magnetic. The washer has sharp internal teeth that dig into surfaces to resist large amounts of vibration while the smooth outside edge provides a finished look. Also known as Sems screws, the washer rotates freely but is permanently attached.

Metric Stainless Steel Pan Head Screws
with Internal-Tooth Lock Washer

Made from stainless steel, these metric screws have good chemical resistance and may be mildly magnetic. The washer has sharp internal teeth that dig into surfaces to resist large amounts of vibration while the smooth outside edge provides a finished look. Also known as Sems screws, the washer rotates freely but is permanently attached.

Steel Pan Head Screws with
Internal-Tooth Lock Washer

Sharp internal teeth dig into surfaces to resist large amounts of vibration, while the smooth outside edge provides a finished look. Also known as Sems screws, the washer rotates freely but is permanently attached.

Metric Steel Pan Head Screws
with Internal-Tooth Lock Washer

These metric screws have a washer with sharp internal teeth that dig into surfaces to resist large amounts of vibration. The smooth outside edge of the washer provides a finished look. Also known as Sems screws, the washer rotates freely but is permanently attached.

Stainless Steel Pan Head Screws
with External-Tooth Lock Washer

Made from stainless steel, these screws have good chemical resistance and may be mildly magnetic. All have a washer with sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached.

Metric Stainless Steel Pan Head Screws
with External-Tooth Lock Washer

These metric stainless steel screws have good chemical resistance and may be mildly magnetic. All have a washer with sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached.

Steel Pan Head Screws with
External-Tooth Lock Washer

The washer on these screws has sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached.

Metric Steel Pan Head Screws
with External-Tooth Lock Washer

These metric screws have a washer with sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached.

Metric Stainless Steel Pan Head
Screws with Spring Lock Washer

These metric stainless steel screws have good chemical resistance and may be mildly magnetic. A curved washer protects delicate surfaces while providing constant tension. Also known as Square Cone Sems screws, the washer rotates freely but is permanently attached.

Stainless Steel Pan Head
Screws with Spring Lock Washer

Made from stainless steel, these screws have good chemical resistance and may be mildly magnetic. A curved washer protects delicate surfaces while providing constant tension. Also known as Square Cone Sems screws, the washer rotates freely but is permanently attached.

Steel Pan Head Screws with Spring Lock Washer

A zinc plating provides mild corrosion resistance.

Metric Steel Pan Head Screws with Split Lock Washer

As you tighten these metric screws, the split lock washer flattens to add tension and prevent loosening from small amounts of vibration. Also known as Sems screws, the washer rotates freely but is permanently attached.

Steel Pan Head Screws with Split Lock Washer

When compressed, the split lock washer flattens to add tension and prevent loosening from small amounts of vibration. Also known as Sems screws, the washer rotates freely but is permanently attached.

Stainless Steel Pan Head Screws with Split Lock Washer

Stainless steel screws have excellent corrosion resistance in most environments.

Pan Head Screws with Flat and Split Lock Washer

The flat washer distributes holding pressure and protects delicate surfaces from damage while the split lock washer adds tension to prevent loosening from small amounts of vibration.

Thread-Locking Rounded Head Screws

Stainless Steel Thread-Locking
Button Head Hex Drive Screws

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. A nylon patch bonded to the threads adds friction to prevent loosening from vibration.

Metric Stainless Steel Thread-Locking
Button Head Hex Drive Screws

These metric 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. A nylon patch bonded to the threads adds friction to prevent loosening from vibration.

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.

Metric Thread-Locking Pan Head Phillips Screws

These metric screws have a nylon patch bonded to the threads that adds friction to prevent loosening from vibration. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Thread-Locking Pan Head Phillips Screws

A nylon patch bonded to the threads adds friction to prevent loosening from vibration. Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic.

Ultra Vibration-Resistant
Thread-Locking Rounded Head Screws

The epoxy adhesive on the threads provides twice the holding power of standard thread-locking screws, but requires time to harden.

Wire-Lockable Rounded Head Screws

Wire these screws together through the hole in the head for better vibration resistance than any other rounded head screw.

Tamper-Resistant Rounded Head Screws

Stainless Steel Tamper-Resistant
Button Head Torx Screws

These 18-8 stainless steel button head screws have good chemical resistance and may be mildly magnetic. The tamper-resistant Torx drive (also known as a pin-in Torx drive) makes them difficult to remove without special tools.

Metric Stainless Steel Tamper-Resistant
Button Head Torx Screws

Made from 18-8 stainless steel, these metric button head screws have good chemical resistance and may be mildly magnetic. The tamper-resistant Torx drive (also known as a pin-in Torx drive) makes them difficult to remove without special tools.

Sealing Stainless Steel Tamper-Resistant
Button Head Torx Screws

To prevent unwanted removal, these screws have a tamper-resistant Torx drive—also known as a pin-in Torx drive—that makes them difficult to unscrew without special tools. An O-ring under the head blocks leaks and seals out dust and dirt.

Metric Sealing Stainless Steel
Tamper-Resistant Button Head Torx Screws

To prevent unwanted removal, these metric screws have a tamper-resistant Torx drive—also known as a pin-in Torx drive—that makes them difficult to unscrew without special tools. An O-ring under the head blocks leaks and seals out dust and dirt.

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.

Tamper-Resistant Drilled Spanner Pan Head Screws

A tamper-resistant drilled spanner drive makes these screws difficult to remove without special tools. They're 18-8 stainless steel for good chemical resistance and may be mildly magnetic.

Metric Tamper-Resistant Drilled
Spanner Pan Head Screws

These metric screws have a drilled spaner drive, making them difficult to remove without special tools. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Extra-Wide Tamper-Resistant
Drilled Spanner Truss Head Screws

The extra-wide head distributes holding pressure to reduce the likelihood of crushing thin materials.

Stainless Steel Tamper-Resistant
Button Head Hex Drive Screws

These 18-8 stainless steel button head screws have good chemical resistance and may be mildly magnetic. The tamper-resistant hex drive (also known as a pin-in hex drive) makes them difficult to remove without special tools.

Metric Stainless Steel Tamper-Resistant
Button Head Hex Drive Screws

Made from 18-8 stainless steel, these metric button head screws have good chemical resistance and may be mildly magnetic. The tamper-resistant hex drive (also known as a pin-in hex 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.

Stainless Steel Tamper-Resistant
One-Way Round Head Screws

Stainless steel screws have excellent corrosion resistance in most environments.

Steel Tamper-Resistant One-Way Round Head Screws

A zinc plating provides mild corrosion resistance.

Tamper-Resistant Tri-Groove Rounded Head Screws

Difficult to remove without special tools, these screws have three grooves.

Tamper-Resistant Asymmetrical
Drive Button Head Screws

These button head screws have a unique drive that is sold only by McMaster-Carr, making them difficult to remove without a special driver bit. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Sealing Rounded Head Screws

Sealing Pan Head Screws

A rubber O-ring prevents leaks and seals out contaminants. Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic.

Metric Sealing Pan Head Screws

These metric screws have a silicone O-ring that prevents leaks and seals out contaminants. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Vibration-Resistant Sealing Rounded Head Screws

A nylon patch bonded to the threads adds friction to resist loosening from vibration.

Vented Rounded Head Screws

Vented Button Head Screws

These screws are drilled through the shaft to vent fluids and gases trapped under the screw. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Metric Vented Button Head Screws

To vent fluid and gas trapped under the screw, these metric screws are drilled through the shaft. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

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.

High-Strength Metric Class 10.9 Steel Hex Head Screws

Choose these metric screws for high-strength fastening. Often used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems, these screws are at least 25% stronger than medium-strength steel screws.

High-Strength Steel Hex Head
Screws with Material Certification

These screws come with a traceable lot number and a physical and chemical test report. Use them for high-strength fastening.

High-Strength Steel Hex Head Screws with Phillips Drive

When clearance for a wrench is limited, these screws have a Phillips drive so you can install them with a screwdriver. They are used for high-strength fastening.

Mil. Spec. High-Strength Steel Hex Head Screws

Choose these screws for their adherence to strict military standards for material and construction. Their high tensile strength means they can be used in demanding, high-stress applications.

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.

Medium-Strength Metric Class
8.8 Steel Hex Head Screws

Choose these metric screws for fastening most machinery and equipment. They are twice as strong as low-strength steel screws.

Mil. Spec. Medium-Strength Steel Hex Head Screws

Choose these screws for their adherence to strict military standards for material and construction. Use them to fasten most machinery and equipment.

Army-Navy Medium-Strength Steel Hex Head Screws

These screws are made to stringent Army-Navy specifications that ensure performance and reliability. They're comparable in strength to Grade 5 steel screws.

JIS Medium-Strength Steel Hex Head Screws

These screws are made to Japanese Industrial Standards. They are suitable for fastening most machinery and equipment.

Low-Strength Steel Hex Head Screws

About half as strong as medium-strength steel screws, these screws can be used for light duty fastening applications, such as securing access panels.

Extreme-Strength Grade 9 Steel Hex Head Screws

These screws are the strongest we offer. They are about 20% stronger than high-strength steel screws and are often used in heavy duty applications such as stamping and earth-moving equipment.

Extreme-Strength Metric Class
12.9 Steel Hex Head Screws

Choose these metric screws for heavy duty stamping applications as well as earth-moving machinery such as bulldozers and excavators. These screws are 10% stronger than our high-strength metric steel screws.

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.

Mil. Spec. 18-8 Stainless Steel Hex Head Screws

Choose these screws for their adherence to strict military standards for material and construction. Screws are 18-8 stainless steel for good chemical resistance.

Super-Corrosion-Resistant 316
Stainless Steel Hex Head Screws

More corrosion resistant than 18-8 stainless steel screws, these 316 stainless steel screws have excellent resistance to chemicals and salt water.

Super-Corrosion-Resistant High-Strength
Bumax 88 Hex Head Screws

Choose these screws for their excellent corrosion resistance—comparable to 316 stainless steel—and the strength of steel. Use them for high-strength fastening in chemical and marine applications.

High-Strength 17-4 PH Stainless Steel Hex Head Screws

With the strength of steel and the corrosion resistance of 18-8 stainless steel, these 17-4 PH stainless steel screws are suitable for high-strength fastening in corrosive environments.

Stainless Steel Hex Screw and Nut Kits for Pipe Flanges

Use these kits to connect standard-size stainless steel pipe flanges for ANSI Class 150 or 300.

Plastic Hex Head Screws

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

Brass Hex Head Screws

Brass screws are electrically conductive, nonmagnetic, and have good corrosion resistance.

Aluminum Hex Head Screws

Aluminum scr

Socket Head Screws

Alloy Steel Socket Head Screws

Mil. Spec. Alloy Steel Socket Head Screws

Torx Alloy Steel Socket Head Screws

High-Temperature Alloy SteelSocket Head Screws—Grade B7

18-8 Stainless Steel Socket Head Screws

Mil. Spec. 18-8 Stainless Steel Socket Head Screws

Cleaned and Bagged 18-8 Stainless SteelSocket Head Screws for High Vacuum

Super-Corrosion-Resistant 316Stainless Steel Socket Head Screws

High-Strength A286 Stainless Steel Socket Head Screws

High-Strength 316 Stainless Steel Socket Head Screws

Plastic Socket Head Screws

Brass Socket Head Screws

Titanium Socket Head Screws

Aluminum Socket Head Screws

Nickel Alloy Socket Head Screws

Bronze Socket Head Screws

Alloy Steel Low-Profile Socket Head Screws

18-8 Stainless Steel Low-Profile Socket Head Screws

Super-Corrosion-Resistant 316 StainlessSteel Low-Profile Socket Head Screws

Alloy Steel Ultra-Low-Profile Socket Head Screws

316 Stainless Steel Ultra-Low-ProfileSocket Head Screws

High-Profile Socket Head Screws

Flanged Socket Head Screws

Exact-Grip-Length Flanged Socket Head Screws

Serrated-Flange Socket Head Screws

18-8 Stainless Steel Thread-LockingSocket Head Screws

Super-Corrosion-Resistant 316 StainlessSteel Thread-Locking Socket Head Screws

Alloy Steel Thread-Locking Socket Head Screws

Stainless Steel Wire-Lockable Socket Head Screws

Alloy Steel Wire-Lockable Socket Head Screws

Stainless Steel Socket HeadScrews with Split Lock Washer

Alloy Steel Socket Head Screws with Split Lock Washer

Vented Socket Head Screws

High-Vacuum Cleaned-and-BaggedVented Socket Head Screws

Sealing Socket Head Screws

Socket Head Screws with Flat Washer

Vibration-Resistant Sealing Socket Head Screws

Socket Head Screws for Square-Drive Wrenches

Brass-Tip Alloy Steel Socket Head Screws

Nylon-Tip Alloy Steel Socket Head Screws

Hex Drive Rounded Head Screws

18-8 Stainless Steel Button Head Hex Drive Screws

Metric 18-8 Stainless SteelButton Head Hex Drive Screws

316 Stainless Steel Button Head Hex Drive Screws

Metric 316 Stainless SteelButton Head Hex Drive Screws

Fine-Thread Metric 316 StainlessSteel Button Head Hex Drive Screws

Alloy Steel Button Head Hex Drive Screws

Metric Alloy Steel Button Head Hex Drive Screws

Brass Button Head Hex Drive Screws

Metric Brass Button Head Hex Drive Screws

Metric Titanium Button Head Hex Drive Screws

Titanium Button Head Hex Drive Screws

Pan Head Phillips Screws

18-8 Stainless Steel Pan Head Phillips Screws

Metric 18-8 Stainless Steel Pan Head Phillips Screws

316 Stainless Steel Pan Head Phillips Screws

Metric 316 Stainless Steel Pan Head Phillips Screws

Mil. Spec. Stainless Steel Pan Head Phillips Screws

JIS Stainless Steel Pan Head Screws

Steel Pan Head Phillips Screws

Metric Steel Pan Head Phillips Screws

Mil. Spec. Steel Pan Head Phillips Screws

JIS Steel Pan Head Screws

Nylon Pan Head Phillips Screws

Metric Nylon Pan Head Phillips Screws

Metric High-Strength High-TemperaturePEEK Pan Head Phillips Screws

High-Strength High-TemperaturePEEK Pan Head Phillips Screws

Impact-Resistant PolycarbonatePan Head Phillips Screws

Metric Impact-Resistant PolycarbonatePan Head Phillips Screws

Brass Pan Head Phillips Screws

Metric Brass Pan Head Phillips Screws

Titanium Pan Head Phillips Screws

Metric Titanium Pan Head Phillips Screws

Extra-Wide Truss Head Phillips Screws

18-8 Stainless Steel Extra-WideTruss Head Phillips Screws

Metric 18-8 Stainless Steel Extra-WideTruss Head Phillips Screws

316 Stainless Steel Extra-WideTruss Head Phillips Screws

Metric 316 Stainless Steel Extra-WideTruss Head Phillips Screws

Decorative Round Head Phillips Screws

High-Temperature Alloy Steel
Socket Head Screws—Grade B7

Cleaned and Bagged 18-8 Stainless Steel
Socket Head Screws for High Vacuum

Super-Corrosion-Resistant 316
Stainless Steel Socket Head Screws

Super-Corrosion-Resistant 316 Stainless
Steel Low-Profile Socket Head Screws

316 Stainless Steel Ultra-Low-Profile
Socket Head Screws

18-8 Stainless Steel Thread-Locking
Socket Head Screws

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Locking Socket Head Screws

Stainless Steel Socket Head
Screws with Split Lock Washer

High-Vacuum Cleaned-and-Bagged
Vented Socket Head Screws

Metric 18-8 Stainless Steel
Button Head Hex Drive Screws

Metric 316 Stainless Steel
Button Head Hex Drive Screws

Fine-Thread Metric 316 Stainless
Steel Button Head Hex Drive Screws

Metric High-Strength High-Temperature
PEEK Pan Head Phillips Screws

High-Strength High-Temperature
PEEK Pan Head Phillips Screws

Impact-Resistant Polycarbonate
Pan Head Phillips Screws

Metric Impact-Resistant Polycarbonate
Pan Head Phillips Screws

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

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

316 Stainless Steel Extra-Wide
Truss Head Phillips Screws

Metric 316 Stainless Steel Extra-Wide
Truss Head Phillips Screws

Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

Metric Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

18-8 Stainless Steel Narrow
Cheese Head Slotted Screws

316 Stainless Steel Narrow
Cheese Head Slotted Screws

18-8 Stainless Steel Decorative
Round Head Slotted Screws

316 Stainless Steel Decorative
Round Head Slotted Screws

Extreme-Temperature Chemical-Resistant
PTFE Decorative Round Head Slotted Screws

18-8 Stainless Steel High-Profile
Narrow Fillister Head Slotted Screws

316 Stainless Steel High-Profile
Narrow Fillister Head Slotted Screws

Metric Low-Profile Ultra-Wide
Truss Head Slotted Screws

High-Strength A286 Stainless
Steel Button Head Torx Screws

Metric High-Strength A286 Stainless
Steel Button Head Torx Screws

Decorative Round Head
Combination Phillips/Slotted Screws

Metric Decorative Round Head
Combination Phillips/Slotted Screws