Steel Hex Head Bolts | McMaster-Carr

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Hex with Pilot Recess

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30,000 psi to 99,999 psi

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36,088 Products

Fastening and Joining

Hex Head Screws

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

10,724 products

Socket Head Screws

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

7,168 products

Rounded Head Screws

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

2,524 products

Flat Head Screws

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

2,470 products

Tapping Screws

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

1,119 products

Set Screws

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

4,577 products

Shoulder Screws

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

6,357 products

Fastener Assortments

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

3 products

Wood Screws

Fasten material to wood or pieces of wood to each other

452 products

Captive Panel Screws

Secure panels and enclosures while still having access to them

129 products

Concrete Screws

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

84 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

Binding Barrels

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

193 products

Anchors

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

54 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

Building and Machinery Hardware

Clamp-On Framing and Fittings

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

1 product

Protective Plugs

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

3 products