Hex | McMaster-Carr

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Material

Stainless Steel

Fastener Head Type

Threading

Partially Threaded

Threaded on Both Ends

Threaded on One End

Finish

Black Zinc Plated

Cadmium Yellow-Chromate Plated

Corrosion-Resistant Coated

Galvanic Barrier Coated

Hot-Dipped Galvanized

Magnesium Phosphate Coated

Drive Style

External 12-Point

External Square

Hex with Pilot Recess

Tamper-Resistant Hex

Tamper-Resistant Torx

Head Width

Thread Pitch

Thread Direction

Thread Spacing

Thread Type

Metric Trapezoidal

Head Height

Specifications Met

Federal Specification

Socket Head Profile

Drive Size

Width

Head Diameter

Screw Features

Tension Indicating

Screw Size

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

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54,407 Products

Fastening and Joining

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

Shoulder Screws

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

Studs

Press, weld, or screw in place to add a threaded fastening point

Wood Screws

Fasten material to wood or pieces of wood to each other

Tighten and loosen by hand without the need for tools

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Jack Screws

Secure computer cables and panels

Joint Clamps for Wood

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

Hex Nuts

Handle most general fastening needs

Coupling Nuts

Connect and extend threaded rods

Locknuts

Hold fasteners in place to prevent loosening from vibration

Flange Nuts

The flange distributes pressure, so you don't need a washer

Socket Nuts

Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts

Panel Nuts

Extremely thin for tight spots such as electrical panels; also known as dress nuts

Cap Nuts

Cover and protect threads while adding a finished look; also known as acorn nuts

Tamper-Resistant Nuts

Tamper-Resistant Nuts

Hard to detach without special tools to prevent unwanted removal

Push-Button Nuts

Push-Button Nuts

Disengage the threads to quickly slide along threaded rods

Sealing Nuts

Prevent leaks and block out contaminants with a rubber seal

Split Nuts

Swivel to attach at any point on a threaded rod for quick installation

Easy to tighten and loosen by hand for making frequent adjustments

Lug Nuts

Secure pneumatic wheels to axles

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Rivet Nuts

Add threads to thin panels with access from only one side; also known as blind inserts

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Weld Nuts

Weld to metal surfaces to add permanent threads

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

Clip-On Nuts

Slide onto the edge of thin panels to create a fastening point

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Rivets

Join materials together permanently, especially when too thin or fragile to fasten with screws

Bit Sockets

Turn fasteners with an internal drive style without slipping and damaging the drive

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Socket Bits

Switch out worn or damaged bits instead of replacing your entire bit socket

Box Wrenches

Grip all sides of a fastener to prevent slipping

Open-End Wrenches

Open-End Wrenches

Tighten and loosen fasteners from the top or the side

Wrench Heads

Attach to your ratchet wrench and socket extension to turn fasteners where clearance is limited

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Water Meter Wrenches

Water Meter Wrenches

Turn meter couplings and shut-off valve nuts on water meters

Raw Materials

Steel

Strong, machinable, and weldable—all with material certificates for traceability

Stainless Steel

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

Brass

More machinable than copper and bronze—all with material certificates for traceability

Plastic

A lightweight alternative to metal and glass

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

Fabricating and Machining

Fixturing Clamps

Fixturing Clamps

Secure your workpiece to a fixture table so it won't move during machining

T-Slot Nuts

Combine with setup studs or bolts to mount fixtures to machine tables

Lathe Tool Insert Holder Replacement Parts

Lathe Tool Insert Holder Replacement Parts

Replace clamps, screws, shims, and other parts in lathe tool insert holders

Clamps

Hold workpieces securely in place

Power Transmission

Lead Screws and Nuts

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

Material Handling

Turnbuckles

Twist the body or end fittings to adjust the length and tension of attached rope and chain

Hoist Rings

Pivot to resist stress that would bend or break an eyebolt when lifting at an angle

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)