Bolt Gaskets | McMaster-Carr

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System of Measurement

Thread Size

Length

Fastener Head Type

Material

Stainless Steel

Drive Style

Tamper-Resistant Torx

Head Height

Threading

Partially Threaded

O-Ring Material

Fluoroelastomer

Silicone Rubber

Viton® Fluoroelastomer

Head Diameter

Flat Head Profile

Thread Type

Specifications Met

Thread Pitch

Drive Size

Tensile Strength

Countersink Angle

DFARS Specialty Metals

Thread Spacing

Hardness

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

Maximum O-Ring Temperature

Rounded Head Style

Thread Fit

Metric Class 6g

Unified Standard Class 2A

Unified Standard Class 3A

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Fastening and Joining

Socket Head Screws

Socket Head Screws

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

Hex Head Screws

Hex Head Screws

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

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.)