terminal block: 1.size:M5*1.45*7.4*9.3 2.Finish: Zinc plated 3.material:carbon steel ... 1022 4.used on C45N MCB terminal block:Features for this item: ... 1.material: carbon steel 10222.head: pozi-head3 ... BSW, JIS, ANSI,DIN, Non-standard2.Material: carbon steel alloy steel,aluminum3.Finish: white/yellow/blue/black ...