6-40 Thread Socket Head Screws | McMaster-Carr

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System of Measurement

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Material

Stainless Steel

Fastener Head Type

Threading

Partially Threaded

Drive Style

Head Diameter

Thread Spacing

Socket Head Profile

Finish

Thread Type

Drive Size

Head Height

Tip Type

Thread Direction

Tensile Strength

50,000 psi to 59,999 psi

60,000 psi to 99,999 psi

100,000 psi or greater

Specifications Met

Rounded Head Style

Flat Head Profile

Thread Fit

Unified Standard Class 2A

Unified Standard Class 3A

Hardness

RoHS

Compliant with Exemptions

DFARS Specialty Metals

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

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