Security Fasteners | McMaster-Carr

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Drive Style

Drilled Spanner

External Pentagon

External Square

Tamper-Resistant Hex

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

System of Measurement

Thread Size

Length

Fastener Head Type

Material

Stainless Steel

Rounded Head Style

Drive Size

Head Diameter

Screw Size

Finish

Zinc Yellow-Chromate Plated

Threading

Partially Threaded

Tip Type

Flat Head Profile

Thread Type

Head Height

Thread Spacing

Barrel Drive Style

Tamper-Resistant Torx

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

Thread Pitch

Thread Fit

Metric Class 6g

Metric Class 6G

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Tensile Strength

Specifications Met

Fed. Spec. FF-S-2738

How can we improve?

1,346 Products

Fastening and Joining

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

Tapping Screws

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

Pentagon Head Screws

Pentagon Head Screws

Create a tamper-resistant joint with a head than can only be removed with a 5-point socket

Tamper-Resistant Nuts

Tamper-Resistant Nuts

Hard to detach without special tools to prevent unwanted removal

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Communication

Tamper-Evident Seals

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

Tamper-Evident Seal Presses

Tamper-Evident Seal Presses

Squeeze the handles to seal locks on wire tamper-evident seals

Electrical

Data Port Locks

Data Port Locks

Block USB or Ethernet ports from unauthorized use

Data Port Plugs

Data Port Plugs

Keep dust, debris, and moisture out of unused computer ports

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