1"-8 Nuts | McMaster-Carr

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System of Measurement

Thread Size

4-40 to 5/16"-32

Material

Stainless Steel

Fastener Strength Grade/Class

Nut Type

Externally Threaded

With Sight Hole

Finish

Cadmium Yellow-Chromate Plated

Hot-Dipped Galvanized

Phosphate Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Hex Nut Profile

Width

Thread Direction

Thread Type

Height

Thread Spacing

Performance

Corrosion Resistant

Seize Resistant

Vibration Resistant

Fastener Strength Rating

Specifications Met

Thread Fit

ASME Interference Class 5

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Length

Drive Style

External Square

Component

Locking Type

Distorted Thread

Color

Application

General Purpose

Not for Lifting

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

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315 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

Square Nuts

Flat sides won’t spin in channels and square holes

Cap Nuts

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

Split Nuts

Swivel to attach at any point on a threaded rod for quick installation

Socket Nuts

Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Hex Head Screws

Hex Head Screws

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

Threaded Rods

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

Power Transmission

Lead Screws and Nuts

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

Precision Lead Screws and Nuts

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

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

Material Handling

Turnbuckles

Twist the body or end fittings to adjust the length and tension of attached rope and chain

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

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

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

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