Alloy Steel Socket Head Cap Screws | McMaster-Carr

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6,513 Products

Socket Head Screws

Steel Socket Head Screws

Steel Socket Head Screws

The standard for high-strength fastening

Low-Profile Steel Socket Head Screws

The shorter head won't snag on components

Ultra-Low-Profile Steel Socket Head Screws

The lowest-profile socket head screw we offer

Steel Thread-Locking Socket Head Screws

Steel Thread-Locking Socket Head Screws

Lock parts in place on vibrating machinery without having to add threadlocker yourself

Steel Flanged Socket Head Screws

Steel Flanged Socket Head Screws

The flange spreads pressure over a wide area to protect thin and soft materials

Low-Profile Steel Socket Head Screws with Pilot Recess

The pilot recess fits an extended-tip L-key for extra leverage

Steel Torx Plus Socket Head Screws

Steel Torx Plus Socket Head Screws

Repeatedly tighten without stripping the socket

Left-Hand-Thread Steel Socket Head Screws

Left-Hand-Thread Steel Socket Head Screws

Turn left to tighten

Steel Socket Head Screws for High-Pressure Applications

Steel Socket Head Screws for High-Pressure Applications

Fasten tanks, valves, and flanges in high-pressure environments up to 1,100° F

Steel Socket Head Screws with Flat Washer

Steel Socket Head Screws with Flat Washer

A freely rotating washer protects thin and soft surfaces from damage

Steel Wire-Locking Socket Head Screws

Steel Wire-Locking Socket Head Screws

Our most vibration-resistant socket head screws

Serrated Flanged Socket Head Screws

Serrated Flanged Socket Head Screws

The flange has a serrated edge to keep screws in place, even under mild vibration

Steel Socket Head Screw Assortments

Steel Socket Head Screw Assortments

Keep a range of socket head screw sizes on hand

Steel Socket Head Screws with Split Lock Washer

Steel Socket Head Screws with Split Lock Washer

Won't come loose from light vibration

Brass-Tip Socket Head Screws

Brass-Tip Socket Head Screws

Stronger than nylon and still won't damage hard plastic and soft metals

Nylon-Tip Socket Head Screws

Nylon-Tip Socket Head Screws

Keep delicate, painted, and polished surfaces pristine

Other Products

Flat Head Screws

Flat Head Screws

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

Rounded Head Screws

Rounded Head Screws

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

Protective Plugs

Protective Plugs

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

Protective Caps

Protective Caps

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)