Left-Hand Threaded Cap Screws | McMaster-Carr

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Thread Direction

System of Measurement

Thread Size

Length

Fastener Head Type

Threading

Partially Threaded

Socket Head Profile

Material

18-8 Stainless Steel

Thread Pitch

Drive Size

Drive Style

Finish

Zinc Yellow-Chromate Plated

Fastener Strength Grade/Class

Thread Type

Thread Fit

Metric Class 5g6g

Metric Class 6g

Metric Class 6h

Unified Standard Class 2A

Unified Standard Class 3A

Thread Spacing

Specifications Met

Head Diameter

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Hardness

REACH

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Head Width

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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

Hex Head Screws

Hex Head Screws

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

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

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