... Switch, Relay, or Thermostats and so on, RoHS Compliant Materials: steel, alloy steel and stainless steelStandards: DIN934, DIN555, DIN439, UNI5587, DIN6915, ... 4, and A563 DHSurface: plain, black, phosphate, zinc, hot dip galvanizing, dacromet, and TeflonPacking: standard exportCan produce according to standard as ... non-standard ones Hex Nut with Phosphate, Hot Dip Galvanizing, and Teflon Surface