Material: Aluminum, brass, bronze, stainless steel
Mounting:
Metal door: type 4, back to back, 1/4 - 20 x 2 1/4" & #8 - 32 x 3/4" OH MS
Wood door: type 4, back to back, 1/4 - 20 x 2 1/4" & #8 x 3/4" OH SMS
Material Size: Set consists of 1 #31-PB & 1 #33-PB
Space: 8"