... Bright chrome plated ZDC body. 4.IP Grading: IP40 1. zinc button panel lock cabinet lock latch 2. Model:SW-406 ... Treatment: Body, Housing, Handle: Zinc alloy die cast, bright chrome plated. Bolt Head, Button: Rolled steel accessory with bright chrome plated. Rod, ... Back-cap : Cold rolled steel accessory with zinc plated. Spring: Carbon steel wire, passivation.6. Application: Bolt ...