Steel, class 8, black

Black castle nuts DIN 935 with a coarse thread

This section is intended for the design identified as black in the catalogue structure. Before choosing, confirm the exact surface finish method, material and mechanical properties of the specific product. The name or colour alone does not establish the coating technology or corrosion resistance.

How do you prepare for nut selection?

• Establish the thread diameter and pitch of the screw or pin.
• Compare height, width across flats and crown dimensions.
• Check the hole in the mating component and the required split pin.
• Confirm the finish and properties in the supplier documentation.

Frequently asked questions

Does “black” mean a specific coating type? The exact finishing process must be specified in the product data sheet. Do not determine it solely from appearance.

Does the category description confirm availability? Availability relates to a specific product. If the list is empty, ask NERON in Piła about selection options and fulfilment time.

Compare other designs: uncoated and white electroplated zinc coating. Match any change of finish to the project requirements.