Square Nut

Square nuts are four-sided nuts designed with a larger bearing surface than standard hex nuts, providing increased resistance to rotation when tightened. The square shape allows them to be used in confined spaces where a wrench cannot fully rotate, making them ideal for applications requiring a secure, anti-rotation fit.

Key Features

• Square shape provides natural resistance to turning

• Larger bearing surface distributes load more effectively

• Ideal for use in tight spaces or with limited tool access

• Often used in T-slot framing, furniture, and machinery assemblies

Applicable Standards

Materials

• Steel: Carbon steel (various grades)

• Stainless Steel: Grades 304 (A2), 316 (A4) for corrosion resistance

• Brass: Available upon request (decorative, electrical, or corrosion-resistant applications)

Surface Finishes

• Zinc Plating (clear, yellow)

• Hot-Dip Galvanizing (HDG)

• Black Oxide (Black)

• Plain finish

• Passivation (stainless steel)

Common Applications

• T-slot framing and modular aluminum structures

• Furniture assembly (bed frames, shelving)

• Machinery and equipment mounting

• Electrical enclosures and control panels

• Agricultural implements

• Custom tooling and fixtures