12-28 Fasteners | McMaster-Carr

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System of Measurement

Thread Size

Length

Fastener Head Type

Threading

Material

Stainless Steel

Drive Style

Head Diameter

Rounded Head Style

Head Height

Drive Size

Thread Spacing

Finish

Dry Film Lubricated

Thread Type

Nut Type

Tip Type

Thread Direction

DFARS Specialty Metals

RoHS

Thread Fit

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Hardness

Export Control Classification Number (ECCN)

For Use In

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Performance

Corrosion Resistant

Vibration Resistant

REACH

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25 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

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Hex Nuts

Handle most general fastening needs

Locknuts

Hold fasteners in place to prevent loosening from vibration

Cap Nuts

Cover and protect threads while adding a finished look; also known as acorn nuts

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

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