Black-Oxide Steel Nuts | McMaster-Carr

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Finish

Material

Stainless Steel

Locking Type

Distorted Thread

System of Measurement

Thread Size

Nut Type

Externally Threaded

Fastener Strength Grade/Class

Hex Nut Profile

Height

Width

Thread Pitch

Thread Direction

Right Hand and Left Hand

Thread Type

Metric Trapezoidal

Thread Spacing

Fastener Strength Rating

Color

Thread Fit

Metric Class 5H

Metric Class 6g

Metric Class 6G

Metric Class 6h

Metric Class 6H

Metric Trapezoidal Class 7e

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Specifications Met

Fed. Spec. FF-N-836

Drive Style

External 12-Point

External Pentagon

External Square

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

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

Washer Material

400 Series Stainless Steel

For Use In

How can we improve?

3,542 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

Coupling Nuts

Connect and extend threaded rods

Easy to tighten and loosen by hand for making frequent adjustments

Push-Button Nuts

Push-Button Nuts

Disengage the threads to quickly slide along threaded rods

Panel Nuts

Extremely thin for tight spots such as electrical panels; also known as dress nuts

Cap Nuts

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

Square Nuts

Flat sides won’t spin in channels and square holes

Binding Barrels

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Fastener Assortments

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

Studs

Press, weld, or screw in place to add a threaded fastening point

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Lock Washers

Resist vibration to prevent fasteners from loosening

Retaining Rings

Retaining Rings

Hold components on a shaft

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Nutdrivers

Tighten and loosen nuts and bolts

Fabricating and Machining

T-Slot Nuts

Combine with setup studs or bolts to mount fixtures to machine tables

T-Slot Bolts

Secure clamps and workpieces to machine tables with quicker setup than a T-slot nut and stud

T-Slot Cleaners

T-Slot Cleaners

Scrape debris out of machine table T-slots

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

Power Transmission

Lead Screw Collars

Lead Screw Collars

Position components and limit travel along a lead screw

Precision Lead Screw Nut Flanges

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

Precision Lead Screws

Precision Lead Screws

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

Ball Screw Nuts

Ball Screw Nuts

Internal ball bearings roll on ball screws for low friction when moving components

Ball Screws

Pair with a ball screw nut for low friction when moving components

Lead Screws

Pair with lead screw nuts to move components in a straight line

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