Socket Head Bolts | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

Stainless Steel

Fastener Head Type

Socket Head Profile

Threading

Partially Threaded

Finish

Titanium Carbon Nitride (TiCN) Coated

Zinc Flake Coated

Drive Style

Hex with Pilot Recess

Thread Pitch

Head Diameter

Head Height

Thread Type

Thread Spacing

Thread Direction

Drive Size

Shoulder Length

Specifications Met

Federal Specification

Shoulder Diameter

Fastener Strength Grade/Class

Tensile Strength

Less than 20,000 psi

20,000 psi to 49,999 psi

50,000 psi to 59,999 psi

60,000 psi to 99,999 psi

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 2B

Unified Standard Class 3A

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

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19,673 Products

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

Shoulder Screws

Shoulder Screws

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

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Communication

Reference Charts

Reference Charts

Check decimal equivalents, drill sizes, or specifications for socket screws

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