UNS Bolts | McMaster-Carr

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System of Measurement

Thread Size

Length

Threading

Partially Threaded

Fastener Strength Grade/Class

Thread Spacing

Fastener Head Type

Material

Stainless Steel

Finish

Zinc Yellow-Chromate Plated

Head Width

Drive Style

Thread Fit

Metric Trapezoidal Class 7H

Unified Standard Class 1A

Unified Standard Class 2A

Unified Standard Class 3A

Head Height

Thread Direction

Tensile Strength

Less than 10,000 psi

10,000 psi to 19,999 psi

30,000 psi to 99,999 psi

100,000 psi or greater

Thread Pitch

Specifications Met

Head Diameter

REACH

DFARS Specialty Metals

Hardness

Rockwell C58 to Rockwell C62

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

Nut Type

Externally Threaded

Rounded Head Style

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378 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

Set Screws

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

Flat Head Screws

Flat Head Screws

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

Tighten and loosen by hand without the need for tools

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

Power Transmission

Ball Screws and Nuts

Ball Screws and Nuts

Provide smooth travel where high speeds, accurate positioning, and repeatable movement are required

Precision Lead Screw Nuts

Precision Lead Screw Nuts

Pair with precision lead screws for accurate starts and stops in your assembly

Precision Lead Screws

Precision Lead Screws

Pair with precision lead screw nuts for accurate starts and stops in your assembly

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