External Hex Nuts | McMaster-Carr

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System of Measurement

Thread Size

Material

Stainless Steel

Nut Type

Tamper Resistant

With Sight Hole

Hex Nut Profile

Width

Finish

Black Zinc Plated

Cadmium Yellow-Chromate Plated

Corrosion-Resistant Coated

Hot-Dipped Galvanized

Phosphate Coated

Zinc Flake Coated

Height

Fastener Strength Grade/Class

Thread Direction

Thread Pitch

Thread Type

Thread Spacing

Locking Type

Distorted Thread

Two-Piece Clamp

Specifications Met

Federal Specification

Performance

Chemical Resistant

Corrosion Resistant

Flame Retardant

High Temperature

Impact Resistant

Metal Detectable

Moisture Resistant

Noncontaminating

Seize Resistant

Fastener Strength Rating

Color

Thread Fit

Metric Class 6g

Metric Class 6G

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3B

Length

Flange Diameter

Drive Style

Drilled Spanner

External 12-Point

External Square

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

How can we improve?

10,173 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

Panel Nuts

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

Sealing Nuts

Prevent leaks and block out contaminants with a rubber seal

Tamper-Resistant Nuts

Tamper-Resistant Nuts

Hard to detach without special tools to prevent unwanted removal

Split Nuts

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

Push-Button Nuts

Push-Button Nuts

Disengage the threads to quickly slide along threaded rods

Easy to tighten and loosen by hand for making frequent adjustments

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Push Nuts

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

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

Joint Clamps for Wood

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

Material Handling

Turnbuckles

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

Fabricating and Machining

Clamps

Hold workpieces securely in place

Power Transmission

Lead Screws and Nuts

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

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