Square nuts are four-sided threaded fasteners usually used in conjunction with bolts or screws. The through-hole of a square nut has internal threads that form a secure connection with external threaded components. Compared to hex nuts, square nuts are less prone to loosening but are also more difficult to tighten. Square nuts have high strength and can withstand large tensile and shear forces. They are suitable for applications that require high-strength fastening, such as mechanical manufacturing, shipbuilding, and the automotive industry.
Specifications
- Metric: M1 to M100.
- Threads: UNC thread, UNF thread, ISO thread, Metric thread, Imperial thread, Full thread, Half thread, Coarse thread, Fine thread.
- Material: Carbon steel, Stainless steel, aluminum, copper, etc.
- Strength grades: 04, 05, 5, 6, 8, 10, 12.
- Packing: Small Box + Carton +Pallet, Custom Packaging Service.
Surface Treatment
We collaborate with over 10 surface treatment manufacturers and can provide any surface treatment service.
- Hot-dip galvanizing
- Oxidized black
- Natural color polishing
- Dacromet
- Phosphating
- Electroplating color zinc
Standards
| DIN 798 | ASME B 18.10 | BS 916 | BS 1981 | GB/T 253 | CNS 4378 |
| DIN 557 | ASME B 18.2.2 | JIS B 1163 | BS 4183 | GB 39 | CNS 4067 |
| DIN 562 | UNI 6419 | NF E 27-412 | BS 325 | SAE J 104 | PN 82151 |
Applications
- Mechanical Manufacturing
- Automotive Industry
- Building and Steel Structures
- Electronic Equipment
- Home Furnishings
- Electricity
- Transportation
51Fasteners — Your first stop for fasteners. We offer high-quality square nuts in a wide range of materials and surface treatments to meet the needs of various industries, from general machinery to high-end industries.