ISO Standard Socket Head Screws | McMaster-Carr

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Stainless Steel

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50,000 psi to 59,999 psi

60,000 psi to 99,999 psi

100,000 psi or greater

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Metric Class 4g6g

Metric Class 5g6g

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5,519 Products

Socket Head Screws

Steel Socket Head Screws

Steel Socket Head Screws

The standard for high-strength fastening

Stainless Steel Socket Head Screws

Stainless Steel Socket Head Screws

Won't rust or corrode when exposed to moisture and chemicals

Sealing Socket Head Screws

Sealing Socket Head Screws

Keep out dust and contaminants and lock in air and fluid

Brass Socket Head Screws

Brass Socket Head Screws

A shiny look and won't rust in damp environments

Stainless Steel Thread-Locking Socket Head Screws

Stainless Steel Thread-Locking Socket Head Screws

Corrosion resistant with a bonded nylon patch so you don't have to add threadlocker yourself

Titanium Socket Head Screws

Titanium Socket Head Screws

Lightweight like aluminum and more corrosion resistant than stainless steel

Left-Hand-Thread Steel Socket Head Screws

Left-Hand-Thread Steel Socket Head Screws

Turn left to tighten

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

Sealing Thread-Locking Socket Head Screws

Sealing Thread-Locking Socket Head Screws

Seal out contaminants and lock in air and fluid in vibrating systems

Cleaned and Bagged Socket Head Screws for High Vacuum

Cleaned and Bagged Socket Head Screws for High Vacuum

Cleaned and double-bagged for use in high-vacuum systems that can't tolerate any contamination

Stainless Steel Socket Head Screw Assortments

Stainless Steel Socket Head Screw Assortments

Keep different sizes of corrosion-resistant socket head screws on hand

Steel Socket Head Screw Assortments

Steel Socket Head Screw Assortments

Keep a range of socket head screw sizes on hand

Cleaned and Bagged Venting Socket Head Screws for High Vacuum

Cleaned and Bagged Venting Socket Head Screws for High Vacuum

Reduce the time it takes to reach vacuum conditions in high-vacuum systems

Other Products

Rounded Head Screws

Rounded Head Screws

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

Flat Head Screws

Flat Head Screws

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

Set Screws

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

Shoulder Screws

Shoulder Screws

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

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