Square Nut

Also known as / standards: Square Nut · DIN 557 · DIN 562

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About Square Nut

Square nuts drop into extrusion slots, timber recesses or square punched holes where their shape stops them turning, so they can be tightened one-handed. Also common on T-slot tables and fixtures.

Also known as Square Nut · DIN 557 · DIN 562

Standards DIN 557 · DIN 562 · JIS B 1163 · CNS 4067 · CNS 4377

Zinc-plated steel

The standard for extrusion and fixture work.

304 stainless

Wet and outdoor service.

How to choose

• Match width across flats to the slot or hole width.
• Aluminium extrusion T-nuts have their own profiles — follow the extrusion maker's spec.