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Nuts

DIN 557 Square Nuts

DIN 557 square nuts feature a four-sided body with a broad bearing surface for secure fastening in construction, machinery and industrial assemblies. SENOTECH supplies metric square nuts in carbon steel and stainless steel with zinc plated, hot dip galvanized and custom finishes for bulk and OEM requirements.

Specifications

Standard
DIN 557
Product Name
Square Nuts
Product Type
Metric Square Nut
Material
Carbon Steel, Stainless Steel
Surface Finish
Zinc Plated, Black Oxide, Plain
Application
Construction, Machinery, Furniture, Steel Fabrication
Customization
Available
The four-sided profile provides a broad bearing surface and makes the nut easy to hold or locate within suitable assemblies. Compared with conventional hexagonal designs, the square body can also help resist rotation when positioned against an edge, inside a channel or within a matching recess.
SENOTECH supplies DIN 557 square nuts for fastener distributors, hardware wholesalers, machinery manufacturers, construction companies and OEM buyers. Common search and purchasing terms include metric square nuts, steel square nuts, stainless steel square nuts and galvanized square nuts.

Material & Surface Finish

Available material options include:
  • Carbon Steel
  • Stainless Steel 304 / A2
  • Stainless Steel 316 / A4
Common surface finishes include:
  • Zinc Plated
  • Yellow Zinc Plated
  • Hot Dip Galvanized
  • Plain
  • Black
  • Customized Coatings
Material and coating can be selected according to installation environment, corrosion resistance requirements and the corresponding bolt or threaded component.

Applications

Square nuts are widely used in:
  • Construction hardware
  • Machinery and equipment
  • Steel fabrication
  • Furniture assemblies
  • Agricultural equipment
  • Wood-to-metal connections
  • Industrial fastening
  • General engineering
They can be used together with bolts, threaded rods and washers to create complete fastening assemblies.

Bulk & OEM Supply

SENOTECH supplies metric square nuts in bulk for distributors, importers and industrial buyers.
Different sizes, materials, finishes and export packaging can be provided according to project specifications. Customized square nuts can also be produced according to drawings or samples where standard products do not meet the application requirements.

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