Head

Flat、Trim、Truss、Hex、Wafer、Buttom、Bugle、Oval
Other special head

Size

6# X 1/2” – 14# X 6”

Recess

Phillip、Pozi、Torx

Surface

Grey、Black Phosphated、
Zinc Cr3 or Cr6、
Yellow Zinc Cr3 or Cr6、
Ruspert、nano-coating、magsow、 Other special coating

Thread

Coarse Thread , Fine Thread, 2A (Twinfast Double Lead), Hi-Lo thread

Package

Bulk, neutral box, colored box, plastic box... based on the request