德制开槽半沉头自攻螺钉 DIN7973
RAISED COUNTERSUNK HEAD TAPPING SCREWS WITH SLOT
美制开槽半沉头自攻螺钉 ANSI/ASME B18.6.4 1981
SLOTTED OVAL COUNTERSUNK HEAD TAPPING SCREWS
IFI H-32(E-28)
公制开槽半沉头自攻螺钉 GB5284-85
RAISED COUNTERSUNK HEAD TAPPING SCREWS WITH SLOT
德制十字槽半沉头自攻螺钉 DIN7983
CROSS RECESSED RAISED CIUNTERSUNK HEAD TAPPING SCREWS
美制十字槽半沉头自攻螺钉 ANSI/ASME B18.6.4 1981
CROSS RECESSED OVAL COUNTERSUNK HEAD TAPPING