3-48 Nuts | McMaster-Carr

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System of Measurement

Thread Size

4-40 to 5/16"-32

Material

18-8 Stainless Steel

Nut Type

Width

Height

Thread Spacing

Hex Nut Profile

Finish

Locking Type

Thread Fit

Unified Standard Class 2B

Thread Direction

Thread Type

Color

DFARS Specialty Metals

Performance

Corrosion Resistant

Vibration Resistant

Specifications Met

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

Drive Style

Length

Flange Diameter

Fastener Strength Rating

Cap Nut Profile

Thumb Nut Profile

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29 Products

Fastening and Joining

Hex Nuts

Handle most general fastening needs

Locknuts

Hold fasteners in place to prevent loosening from vibration

Flange Nuts

The flange distributes pressure, so you don't need a washer

Cap Nuts

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

Coupling Nuts

Connect and extend threaded rods

Easy to tighten and loosen by hand for making frequent adjustments

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

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.)