Passivated Fasteners | McMaster-Carr

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System of Measurement

Thread Size

Length

Drive Style

Drilled Spanner

Tamper-Resistant Hex

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Material

18-8 Stainless Steel

300 Series Stainless Steel

316 Stainless Steel

400 Series Stainless Steel

Fastener Head Type

Head Diameter

Rounded Head Style

Threading

Partially Threaded

Head Height

Flat Head Profile

Drive Size

Countersink Angle

Thread Type

Socket Head Profile

Thread Pitch

Thread Direction

Screw Size

Thread Spacing

Specifications Met

Federal Specification

Thread Fit

Metric Class 4g6g

Metric Class 5g6g

Metric Class 6g

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

DFARS Specialty Metals

RoHS

REACH

Export Control Classification Number (ECCN)

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9,843 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

Socket Head Screws

Socket Head Screws

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

Shoulder Screws

Shoulder Screws

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

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Lock Washers

Resist vibration to prevent fasteners from loosening

Easy to tighten and loosen by hand for making frequent adjustments

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Material Handling

Eyebolts

Route rope through the loop or attach hooks and shackles for lifting

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