Thread-Locking Hex Head Cap Screws | McMaster-Carr

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Locking Type

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Material

Stainless Steel

Fastener Head Type

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Threading

Partially Threaded

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Zinc Yellow-Chromate Plated

Threadlocker Type

Acrylic Adhesive

Socket Head Profile

Head Height

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Shoulder Diameter

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Specifications Met

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

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DFARS Specialty Metals

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

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1,263 Products

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

Shoulder Screws

Shoulder Screws

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

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