DESCRIPTIONS: Green Zinc alloy die cast housing and cylinder. Bright chrome or Green nickel-plated standard. 7 pin tumbler mechanism. Brass made tubular keys, Green nickel-plated. Key may be withdrawn in one or both positions. Silver plated contacts and terminals. 2 positions (off-on) 2 tor 4 tubular terminals. Hex nut mounted. 1-10000 combinations available.