[Features]
·When the counterpart is wood, use a round washer with a large outer diameter for wood to prevent depressions
[Material]
・ steel
[Special Plating]
·Chromate plating / hot-dip galvanizing / Parkerizing / trivalent stainless coating / micron trivalent white / green chromate / Dacrotized / trivalent black / Geomet treatment / dark bronze color plating / black chromate / tin cobalt / copper plating / black nickel / clear chromium-free plating / Lafre / hot-dip zinc aluminum alloy plating / stainless-steel-like coating / DISGO treatment