Left-Hand Threaded Hex Head Cap Screws | McMaster-Carr

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System of Measurement

Thread Size

Thread Direction

Length

Threading

Partially Threaded

Fastener Head Type

Material

18-8 Stainless Steel

Fastener Strength Grade/Class

Thread Pitch

Head Height

Thread Type

Head Width

Thread Fit

Metric Class 5g6g

Metric Class 6g

Metric Class 6h

Unified Standard Class 2A

Unified Standard Class 3A

Specifications Met

Drive Style

Tensile Strength

60,000 psi to 99,999 psi

100,000 psi or greater

Thread Spacing

Socket Head Profile

Hardness

Finish

Zinc Yellow-Chromate Plated

Drive Size

REACH

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Head Diameter

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328 Products

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

Shoulder Screws

Shoulder Screws

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

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.)