Standard:

DIN 7504, ANSI/ASME B18.64, Hex washers self drilling screw,Washer Head Self-Drilling Screw ,Pan Framing,drywall screw of self drilling screw), Hex Head self drilling screw

Special and Non-standard products, against to the Drawing or Photos or Samples.
Raw material:
Carbon Steel, 1018, 1022, CH22A
Stainless steel, 304, 316 (A2, A4), SS 18-8.
Available Size:
Screw: Dia.6#-14#, Length: 13mm-100mm (1/2"-4")
Finishing (surface):

Black, White or Blueness Zinc (Cr.3 or Cr.6), Dacromet, Hot Dip Galv, Nickel Plating, Cuprum...
Packing:

Carton Bulk and on pallet, or as per the customers required.
6#8#Z2--13.00mm, Z3--16.00mm
10#Z2--16.00mm, 3--19.00MM
12#Z3--22.00mm
14#Z3--25.00mm
Purchasing Notice:

Please lets know the Size, quantity, Material or Grade, surface If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us.