Mil. Spec. Hex Head Screws | McMaster-Carr

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Specifications Met

Federal Specification

Military Specification

System of Measurement

Thread Size

Length

Material

Stainless Steel

Threading

Partially Threaded

Fastener Head Type

Drive Style

Finish

Zinc Yellow-Chromate Plated

Head Width

Fastener Strength Grade/Class

Tensile Strength

60,000 psi to 99,999 psi

100,000 psi or greater

Thread Type

Thread Spacing

DFARS Specialty Metals

Socket Head Profile

Thread Direction

Thread Fit

Metric Class 6g

Unified Standard Class 2A

Unified Standard Class 3A

Head Diameter

Drive Size

RoHS

Export Control Classification Number (ECCN)

Certification

REACH

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Fastening and Joining

Hex Head Screws

Hex Head Screws

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

Socket Head Screws

Socket Head Screws

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

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Flat Head Screws

Flat Head Screws

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

Shoulder Screws

Shoulder Screws

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

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