Metric Square Nuts | McMaster-Carr

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System of Measurement

Thread Type

Metric Trapezoidal

Thread Size

Nut Type

Tamper Resistant

Height

Material

18-8 Stainless Steel

Width

Thread Pitch

Finish

Black Zinc Plated

Phosphate Coated

Zinc Yellow-Chromate Plated

Specifications Met

NEBS GR-63-CORE

Thread Direction

Fastener Strength Grade/Class

Thread Spacing

Fastener Strength Rating

Thread Fit

Metric Class 6G

Metric Class 6H

Metric Class 7H

Metric Trapezoidal Class 7H

DFARS Specialty Metals

Weld Nut Shape

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

REACH

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

Panel Thickness

0.7 mm to 1.4 mm

0.7 mm to 1.6 mm

1.4 mm to 2.3 mm

1.5 mm to 2.3 mm

1.7 mm to 2.6 mm

1.75 mm to 2 mm

2.4 mm to 3.2 mm

3.2 mm to 3.9 mm

3.2 mm to 4.1 mm

Hole Diameter

Performance

Base Width

Color

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102 Products

Square Nuts

18-8 Stainless Steel Thin-Profile Square Nuts

Use in low-clearance areas where moisture and chemicals are present

Low-Strength Steel Square Nuts

Low-Strength Steel Square Nuts

About half the strength of medium-strength steel for light duty fastening

Medium-Strength Steel Thin-Profile Square Nuts

Two-thirds the height of standard nuts for low-clearance areas

18-8 Stainless Steel Square Nuts

18-8 Stainless Steel Square Nuts

Resist corrosion where moisture and chemicals are present

Ultra-High-Temperature Carbon Fiber Square Nuts

Ultra-High-Temperature Carbon Fiber Square Nuts

Won't warp in extreme-heat applications such as furnace fixtures

Other Products

Weld Nuts

Weld to metal surfaces to add permanent threads

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Strut Channel Nuts

Strut Channel Nuts

Fasten on threaded rod to connect components to strut channel

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

Tamper-Resistant Nuts

Tamper-Resistant Nuts

Hard to detach without special tools to prevent unwanted removal

Clip-On Nuts

Slide onto the edge of thin panels to create a fastening point

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