1.

內六角孔螺絲
ACCORDING TO IFI , DIN , STANDARD

MATERIAL : 18-8 STAINLESS STEEL , STEEL

2.

自攻螺絲
ACCORDING TO DREWING

MATERIAL : 18-8 S/S & 410 S/S &,STEEL

3.

複合螺絲
ACCORDING TO IFI , DIN , JIS STANDARD MATERIAL : 410STAINLESS STEEL

4.

鑽尾螺絲
ACCORDING TO DIN , IFI , JIS STANDARD MATERIAL : STAINLESS STEEL , STEEL