Washer Head Machine Screws | McMaster-Carr

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Screw Features

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System of Measurement

Thread Size

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Material

Stainless Steel

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External 12-Point

Tamper-Resistant Torx

Fastener Head Type

Threading

Partially Threaded

Finish

Corrosion-Resistant Coated

Phosphate Coated

Ultra-Corrosion-Resistant Coated

Zinc Yellow-Chromate Plated

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Head Height

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Screw Size

Thread Pitch

Fastener Strength Grade/Class

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DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

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4,198 Products

Fastening and Joining

Rounded Head Screws

Rounded Head Screws

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

Hex Head Screws

Hex Head Screws

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

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

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

12-Point Screws

12-Point Screws

12 contact points handle more torque than a hex head while a flange eliminates the need for a washer

Tighten and loosen by hand without the need for tools

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