Meterial:C1022 , Carbon steel
Finished:phosphated(black, grey) , galvanized(zinc coated) and other as require.
The surface after phosphated or galvanized, has good corrosion resistance, rust resistance.
Main feature:tapping/drilling point, bugle head, phillips drive, hardened, coarse/fine(twin-fast) Thread.
Normal size:
3.5x13 3.5x16 3.5x19 3.5x25 3.5x32 3.5x35 3.5x38 3.5x50…
4.2x16 4.2x19 4.2x25 4.2x32 4.2x35 4.2x38 4.2x45 3.5x50…
4.8x16 4.8x19 4.8x25 4.8x32 4.8x38 4.8x45 4.8x50 4.8x60 4.8x70 4.8x80 4.8x100
4.8x16 4.8x19 4.8x25 4.8x32 4.8x38 4.8x45 4.8x50 4.8x60 4.8x70 4.8x80 4.8x100
Package:500pcs-1000pcs/box(bag) or 1KG/box(bag). 12 or 20boxes/carton. as common.otherwise. 25KG/carton in bulk or also can be packed as required.
Usage: Having a high tensile strength value and are durableenough to handle repeated assembly and disassembly so often used to fasten sheet metal composite materials. woods and plastics.
