Safety Screws | McMaster-Carr

Filter by

System of Measurement

Thread Size

Drive Style

Drilled Spanner

Tamper-Resistant Hex

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Length

Fastener Head Type

Material

Stainless Steel

Rounded Head Style

Drive Size

Head Diameter

Finish

Threading

Partially Threaded

Screw Size

Tip Type

Head Height

Thread Type

Flat Head Profile

Thread Spacing

Performance

Corrosion Resistant

Tamper Resistant

Vibration Resistant

Specifications Met

Fed. Spec. QQ-P-35

RoHS

Compliant with Exemptions

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

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Tensile Strength

Thread Fit

Metric Class 6g

Unified Standard Class 2A

Unified Standard Class 3A

How can we improve?

1,367 Products

Rounded Head Screws

Tamper-Resistant Torx Stainless Steel Button Head Screws

Tamper-Resistant Torx Stainless Steel Button Head Screws

Deter unauthorized access in corrosive environments

Tamper-Resistant Torx Steel Button Head Screws

Tamper-Resistant Torx Steel Button Head Screws

Our strongest tamper-resistant Torx screws

Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Our most corrosion-resistant hex-drive screws for preventing unauthorized access

Tamper-Resistant Drilled Spanner Stainless Steel Pan Head Screws

Tamper-Resistant Drilled Spanner Stainless Steel Pan Head Screws

The unique two-hole design inhibits tampering

Tamper-Resistant Asymmetrical-Drive Stainless Steel Button Head Screws

Tamper-Resistant Asymmetrical-Drive Stainless Steel Button Head Screws

A unique drive that's only available from McMaster-Carr

Tamper-Resistant Drilled Spanner Stainless Steel Truss Head Screws

Tamper-Resistant Drilled Spanner Stainless Steel Truss Head Screws

A wide top distributes weight and a two-hole design deters tampering

Tamper-Resistant Hex-Drive Steel Button Head Screws

Tamper-Resistant Hex-Drive Steel Button Head Screws

Our strongest hex-drive screws for deterring unauthorized access

Tamper-Resistant One-Way-Drive Stainless Steel Round Head Screws

Tamper-Resistant One-Way-Drive Stainless Steel Round Head Screws

Install with a slotted driver in corrosive environments and remove with a special tool

Wire-Locking Stainless Steel Fillister Head Slotted Screws

Wire-Locking Stainless Steel Fillister Head Slotted Screws

The best vibration resistance of our rounded head screws

Sealing Tamper-Resistant Torx Stainless Steel Button Head Screws

Sealing Tamper-Resistant Torx Stainless Steel Button Head Screws

Restrict unauthorized access while keeping out contaminants and locking in air and fluid

Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

Sloped with three notches, so they're nearly impossible to grip without the proper tool

Tamper-Resistant One-Way-Drive Steel Round Head Screws

Tamper-Resistant One-Way-Drive Steel Round Head Screws

Install with a slotted driver but need a special tool to remove

Other Products

Tapping Screws

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

Flat Head Screws

Flat Head Screws

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

Socket Head Screws

Socket Head Screws

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

Binding Barrel Posts and Screws

Binding Barrel Posts and Screws

Thread together for a low-profile fastener

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

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