EN
BN 30905 - BS 4174
Headform: Button na may kwelyo
Drive：Cross recess Z (Pozidriv)
Thread: ganap na sinulid
Materyal: Bakal
Pagpapatupad ng materyal: pinatigas ang kaso
Ibabaw: zinc plated blue
Katigasan：450 HV
- Parametro
Parametro
Pozi pan head tapping screws na may collar, form Z at flat end type F Steel - pinatigas ng case - zinc plated blue
