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

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Thread Direction

Length

Fastener Head Type

Threading

Partially Threaded

Material

18-8 Stainless Steel

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Head Height

Thread Type

Head Width

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Specifications Met

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Thread Fit

Metric Class 5g6g

Metric Class 6g

Metric Class 6h

Unified Standard Class 2A

Unified Standard Class 3A

Tensile Strength

Less than 100,000 psi

110,000 psi to 129,999 psi

150,000 psi or greater

Socket Head Profile

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Finish

Zinc Yellow-Chromate Plated

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DFARS Specialty Metals

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REACH

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279 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

Flat Head Screws

Flat Head Screws

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

Shoulder Screws

Shoulder Screws

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

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.)