Alloy Steel Socket Head Screws | McMaster-Carr

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System of Measurement

Thread Size

Length

Finish

Zinc Flake Coated

Fastener Head Type

Socket Head Profile

Threading

Partially Threaded

Drive Style

Hex with Pilot Recess

Tamper-Resistant Hex

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Material

Stainless Steel

Head Diameter

Thread Pitch

Head Height

Thread Type

Drive Size

Fastener Strength Grade/Class

Thread Direction

Thread Spacing

Specifications Met

Tensile Strength

100,000 psi or greater

Thread Fit

Metric Class 4g6g

Metric Class 5g6g

Metric Class 6g

Metric Class 6h

Unified Standard Class 2A

Unified Standard Class 3A

Tip Type

Shoulder Diameter

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

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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

Flat Head Screws

Flat Head Screws

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

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

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.)