Hex Head Screws | McMaster-Carr

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Less than 100,000 psi

100,000 psi to 109,999 psi

110,000 psi to 119,999 psi

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130,000 psi or greater

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Unified Standard Class 2A

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Unified Standard Class 3A

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REACH

Compliant

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

Yes

Export Control Classification Number (ECCN)

38,685 Products

Fastening and Joining

Hex Head Screws

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

11,773 products

Tapping Screws

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

1,123 products

Socket Head Screws

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

7,915 products

Wood Screws

Fasten material to wood or pieces of wood to each other

452 products

Rounded Head Screws

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

2,742 products

Flat Head Screws

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

2,576 products

Set Screws

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

4,811 products

Concrete Screws

Anchor parts to concrete, block, and brick without tapping the hole first

84 products

Shoulder Screws

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

6,534 products

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

4 products

Captive Panel Screws

Secure panels and enclosures while still having access to them

129 products

Thumb Screws

Tighten and loosen by hand without the need for tools

78 products

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

2 products

Anchors

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

56 products

Binding Barrels

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

193 products

Magnets

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

5 products

Building and Machinery Hardware

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

23 products

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

17 products

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

1 product

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

2 products

Power Transmission

Lead Screws

Pair with lead screw nuts to move components in a straight line

27 products

Fabricating and Machining

Lathe Tool Insert Holder Replacement Parts

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

26 products

Clamping Screws

Combine with other coil-thread components to build a fast-threading clamping assembly

6 products

T-Tracks

A versatile foundation for custom fixturing setups

4 products

Electrical Power, Networking, and Controlling

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

3 products