These truss head tapping screws with type B threads are self-tapping and machined from stainless steel.
This truss head Phillips tapping screw(EDMO# 8RX1/2THB)is made from stainless steel, has a 1/2-inch length, and a #8 Type B thread size.
规格：
Length:
1/2 in
Thread:
8, type B
Material:
stainless steel
特征：
Machined from stainless steel
55,000 PSI minimum tensile strength
Phillips blunt pointed, coarse threaded
Finer pitch than Type A screws threads
