McMaster-Carr

With a deeper drive than flat and rounded head screws, socket head screws withstand more torque for a tighter hold. Install in a counterbored hole or above the surface.

Rounded Head Screws

A domed head sits above the surface of your material. Includes screws such as pan, button, binding, and truss head screws.

Flat Head Screws

Flat and oval head screws are angled under the head to fit in countersunk holes.

Set Screws

Unlike screws that hold materials together with threads, set screws exert pressure at the tip to hold objects in place.

Shoulder Screws

A cylindrical shoulder under the head allows parts to rotate around and slide along its length, so these screws are often used to guide and align components.

Binding Barrels and Screws

Use these as a low-profile alternative to standard nut and bolt combinations.

Captive Panel Screws

Secure panels and enclosures while allowing access. Screws become part of the panel when installed, so they won't fall out and get lost.

Thumb Screws

Thumb screws provide a secure grip for tightening and loosening by hand.

Other Allen Heads

Screw Assortments

Square Drive Sockets
and Ratchet Wrenches

Attach different sockets to a ratcheting wrench to turn a variety of fastener sizes and shapes.

Reference Charts

Includes charts that list specifications and tightening guidelines for socket screws as well as charts that provide decimal equivalents and drill sizes.

Fastener Caps

Conceal and protect screw heads and nuts.

Screws for Carbide Insert Holders

When it's time to replace the screws in a carbide insert holder, use the reference number on your holder to find the right size.

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Screws and Bolts

Socket Head Screws