8-32 Fasteners | McMaster-Carr

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System of Measurement

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Material

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Tamper-Resistant Torx

Tamper-Resistant Torx Plus

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Cadmium Yellow-Chromate Plated

Chrome Plated

Copper Plated

Corrosion-Resistant Coated

Threading

Threaded on Both Ends

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Right Hand and Left Hand

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Unified Standard Class 3A

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REACH

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

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Compliant

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Export Control Classification Number (ECCN)

5,221 Products

Fastening and Joining

Rounded Head Screws

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

906 products

Socket Head Screws

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

422 products

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

464 products

Hex Head Screws

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

131 products

Shoulder Screws

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

518 products

Thumb Screws

Tighten and loosen by hand without the need for tools

122 products

Set Screws

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

256 products

Tapping Screws

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

98 products

Captive Panel Screws

Secure panels and enclosures while still having access to them

37 products

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

6 products

Carriage Bolts

A smooth head provides a finished look while a square neck keeps the bolt in place when using a nut

4 products

Studs

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

57 products

Oval Head Screws

The domed top sits slightly above the surface of countersunk holes for a decorative look

32 products

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

303 products

Hex Nuts

Handle most general fastening needs

40 products

Locknuts

Hold fasteners in place to prevent loosening from vibration

40 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

32 products

Cap Nuts

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

20 products

Coupling Nuts

Connect and extend threaded rods

12 products

Flange Nuts

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

13 products

Socket Nuts

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

2 products

Square Nuts

Flat sides won’t spin in channels and square holes

5 products

Sealing Nuts

Prevent leaks and block out contaminants with a rubber seal

2 products

Threaded Inserts

Create new threads or repair stripped threads

188 products

Press-Fit Nuts

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

33 products

Clip-On Nuts

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

7 products

Rivet Nuts

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

36 products

Rivet-Mount Nuts

Add threads in hard-to-reach areas and materials that are too thin to be tapped

7 products

Screw-Mount Nuts

Mount with screws, rivets, and nails to add threads to a surface

1 product

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

12 products

Push Nuts

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

3 products

Weld Nuts

Weld to metal surfaces to add permanent threads

30 products

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

3 products

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

4 products

Standoffs

Separate, position, or connect components in assemblies

689 products

Dowel Pins

Align parts before assembly or use as a pivot, shaft, or hinge to join moving components

70 products

Taper Pins

Fit snugly into tapered holes to secure, position, and align components

4 products

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

99 products

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

5 products

Fabric Snaps

Complete snaps that join fabric together or fasten fabric to surfaces

8 products

Thread Adapters

Join threads of a different type, size, and gender

245 products

Anchors

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

2 products

Press-Fit Nut Installation Tools

Everything you need to install press-fit nuts by hand

Install and remove blind, solid, hollow, and other types of rivets

1 product

Threaded Insert Installation Tools

Install helical, key-locking, slotted-drive, and other threaded inserts

36 products

Anchor Installation Tools

Drive with a hammer to expand and secure anchors in place

1 product

Magnets

Attract or repel metal objects to hang, secure, or position them

2 products

Power Transmission

Lead Screw Collars

Position components and limit travel along a lead screw

5 products

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

11 products

Building and Machinery Hardware

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

2 products

Strut Channel Nuts

Fasten on threaded rod to connect components to strut channel

5 products

Knobs

Position, tighten, and secure fixtures and equipment

3 products

Cam Handles

For fast clamping, push down on the handle to draw two parts together

5 products

Fabricating and Machining

Lathe Tool Insert Holder Set Screws

Replace the set screws on your lathe tool insert holder

1 product

Toggle Clamps

Lock workpieces onto worktables or objects

14 products

C-Clamps

Temporarily secure workpieces together or to a work surface

1 product

Fixture Clamps

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

16 products

Material Handling

Turnbuckles

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

7 products

Eyebolts

Route rope through the loop or attach hooks and shackles for lifting

5 products