Metric Locknuts | McMaster-Carr

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System of Measurement

Thread Type

Metric Trapezoidal

Thread Size

Nut Type

Tamper Resistant

Thread Pitch

Locking Type

Distorted Thread

Material

Stainless Steel

Hex Nut Profile

Height

Finish

Black Zinc Plated

Corrosion-Resistant Coated

Phosphate Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Width

Fastener Strength Grade/Class

Specifications Met

Performance

Corrosion Resistant

Vibration Resistant

Thread Spacing

Fastener Strength Rating

Washer Material

Stainless Steel

Thread Direction

Insert Maximum Temperature

Color

Flange Diameter

Drive Style

Drilled Spanner

External Square

REACH

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Export Control Classification Number (ECCN)

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2,527 Products

Fastening and Joining

Locknuts

Hold fasteners in place to prevent loosening from vibration

Flange Nuts

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

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

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

Press-Fit Nuts

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

Weld Nuts

Weld to metal surfaces to add permanent threads

Push Nuts

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

Rivet Nuts

Add threads to thin panels with access from only one side; also known as blind inserts

Shoulder Screws

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

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

Hex Head Screws

Hex Head Screws

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

Lock Washers

Resist vibration to prevent fasteners from loosening

Power Transmission

Bearing Nuts

Hold bearings, bushings, pulleys, and gears in place on threaded shafts and spindles

Bearing Lock Washers

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

Lead and Ball Screw End Supports

Lead and Ball Screw End Supports

Brace and secure the ends of lead screws and ball screws

Electrical

Conduit and Conduit Fittings

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

Fluid Handling

Pipe and Pipe Fittings

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

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