Grade 5 Steel Cap Screws | McMaster-Carr

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Material

Fastener Strength Rating

Tensile Strength

100,000 psi or greater

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Corrosion-Resistant Coated

Hot-Dipped Galvanized

Zinc Flake Coated

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Fastener Strength Grade/Class

ASTM Grade A325

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Partially Threaded

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External Square

Specifications Met

Fed. Spec. FF-S-86

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Metric Class 6g

Unified Standard Class 2A

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Unified Standard Class 3A

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Fastening and Joining

Hex Head Screws

Hex Head Screws

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

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head 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

Square Head Screws

Square Head Screws

Turn the large flat sides with a wrench into square holes that stop further rotation

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