Hex Fasteners | McMaster-Carr

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10,000 psi to 19,999 psi

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1C998

2B999

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24,941 Products

Fastening and Joining

Socket Head Screws

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

7,648 products

Rounded Head Screws

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

2,620 products

Flat Head Screws

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

2,523 products

Set Screws

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

4,776 products

Shoulder Screws

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

6,448 products

Fastener Assortments

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

3 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

56 products

Studs

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

1 product

Binding Barrels

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

193 products

Socket Nuts

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

65 products

Thread Adapters

Join threads of a different type, size, and gender

34 products

Threaded Inserts

Create new threads or repair stripped threads

69 products

Anchors

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

11 products

Standoffs

Separate, position, or connect components in assemblies

12 products

Rivet Tools

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

2 products

Threaded Insert Installation Tools

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

5 products

Building and Machinery Hardware

T-Slotted Framing and Fittings

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

112 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

Protective Plugs

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

3 products

Fabricating and Machining

Lathe Tool Insert Holder Replacement Parts

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

25 products

Fixture Clamps

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

191 products

T-Slot Nuts

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

14 products

C-Clamps

Temporarily secure workpieces together or to a work surface

3 products

Electrical Power, Networking, and Controlling

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

2 products