Stamped Cross Dowel Obround

a) This metallic nut features a flanged base with serrated grooves encircling its body.

b) This part is used for secure fastening in mechanical assemblies, with features designed to resist loosening under vibration.

c) The external structure, the serrated grooves or knurls, enhances grip for improved stability. 

ISO 4035 / DIN 439B

Steel closed end cap nut two pieces brass color 

Carbon steel hex collar weld nut heat treated

a) A square weld nut with prongs or projections is a type of fastener designed for welding to a metal surface. It is a square-shaped nut with four prongs on one side, which assist in the welding process and provide additional stability during installation.

b) Nycote prevents adhesion of weld spatter. This protective coating also improves lubricity and reduces installation drive friction.