Mil. Spec. Machine Screws | McMaster-Carr

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Specifications Met

Federal Specification

Military Specification

Army-Navy Specification

Military Specification

System of Measurement

Thread Size

Length

Drive Style

Material

Silicone Rubber

Stainless Steel

Fastener Head Type

Countersink Angle

Finish

Zinc Yellow-Chromate Plated

Rounded Head Style

Head Diameter

Flat Head Profile

DFARS Specialty Metals

Certification

Threading

Partially Threaded

Head Height

Thread Type

RoHS

Socket Head Profile

Thread Fit

Metric Class 6g

Unified Standard Class 2A

Unified Standard Class 3A

REACH

Drive Size

Tensile Strength

60,000 psi to 99,999 psi

100,000 psi or greater

Thread Spacing

Export Control Classification Number (ECCN)

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1,380 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

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

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