标准
DIN,BS,ANSI,ISO,GB, Nonstandard.
Material
carbon steel 1022
Drive (slot/phillip...)
PHILIPS
Diameter(mm)
2.9,3.5,3.9,4.2,4.8,5.5,6.8
Length(mm)
9.5,13,16,19,25,32,38,45,55
Surface Treatment
Black Oxide , Zinc plated
Color
Black Oxide , Zinc plated
Usage
more secure and will hardly damage the wood
Packing
BOX PACK OR IN BULK