Key Screws | McMaster-Carr

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Hex with Pilot Recess

Tamper-Resistant Torx

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Titanium Carbon Nitride (TiCN) Coated

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DFARS Specialty Metals

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Compliant with Exemptions

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REACH

Compliant

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

Yes

Export Control Classification Number (ECCN)

25,633 Products

Fastening and Joining

Set Screws

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

4,778 products

Socket Head Screws

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

7,992 products

Plow Bolts

The head sits flush with countersunk holes while the bolt stays in place when tightening a nut

50 products

Flat Head Screws

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

2,867 products

Rounded Head Screws

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

3,202 products

Fastener Assortments

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

3 products

Pentagon Head Screws

Create a tamper-resistant joint with a head than can only be removed with a 5-point socket

17 products

Thumb Screws

Tighten and loosen by hand without the need for tools

56 products

Tapping Screws

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

220 products

Shoulder Screws

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

6,448 products

Binding Barrel Posts and Screws

Thread together for a low-profile fastener

39 products

Building and Machinery Hardware

Clamp-On Framing Fasteners

Tighten to hold clamp-on framing in place

1 product

Slip-On Framing Fasteners

Replace set screws used on slip-on framing

2 products

Electrical Power, Networking, and Controlling

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

2 products