BN 1221 - DIN 7513 A
Headform: Hexagon
Drive: Hexagon
Thread: ganap na sinulid
Materyal: Bakal
Pagpapatupad ng materyal: pinatigas ang kaso
Ibabaw: zinc plated blue
Katigasan:450 HV
- Parametro
Parametro
Hex head thread cutting screws type A, na may metric thread Steel - case-hardened - zinc plated blue