M3 Socket Head Cap Screws | McMaster-Carr

Filter by

System of Measurement

Length

Material

Stainless Steel

Fastener Head Type

Socket Head Profile

Threading

Partially Threaded

Drive Style

Tamper-Resistant Hex

Tamper-Resistant Torx

Thread Pitch

Finish

Zinc Flake Coated

Head Diameter

Head Height

Thread Type

Thread Spacing

Specifications Met

Fastener Strength Grade/Class

Tensile Strength

Less than 20,000 psi

20,000 psi to 49,999 psi

50,000 psi to 69,999 psi

70,000 psi to 99,999 psi

100,000 psi or greater

Color

Rounded Head Style

Thread Direction

Drive Size

REACH

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Export Control Classification Number (ECCN)

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

How can we improve?

626 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

Ultra-Low-Profile Steel Socket Head Screws

The lowest-profile socket head screw we offer

Low-Profile Stainless Steel Socket Head Screws

Corrosion resistant with a shorter head that won't snag on components

Low-Profile Steel Socket Head Screws

The shorter head won't snag on components

Ultra-Low-Profile Stainless Steel Socket Head Screws

Corrosion resistant and the lowest-profile socket head screw we offer

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

Brass Socket Head Screws

Brass Socket Head Screws

A shiny look and won't rust in damp environments

Aluminum Socket Head Screws

Aluminum Socket Head Screws

One-third the weight of steel

Plastic Socket Head Screws

Plastic Socket Head Screws

Secure parts without adding much weight

Titanium Socket Head Screws

Titanium Socket Head Screws

Lightweight like aluminum and more corrosion resistant than stainless steel

Venting Socket Head Screws

Venting Socket Head Screws

A hole prevents the buildup of pressure and vacuum in sealed spaces

Sealing Socket Head Screws

Sealing Socket Head Screws

Keep out dust and contaminants and lock in air and fluid

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

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

Nickel Socket Head Screws

Nickel Socket Head Screws

The strongest ultra-corrosion-resistant screws we offer

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

Sealing Thread-Locking Socket Head Screws

Sealing Thread-Locking Socket Head Screws

Seal out contaminants and lock in air and fluid in vibrating 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

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