3-inch Stainless Steel Automatic Door Security Latch Lock Barrel Bolt Package Content: 1 x Automatic Barrel Bolt; Product Name: Automatic Barrel Bolt Material: Stainless Steel; Weight: 81g Mounting Hole Diameter: 4mm; Dimension: 75 x 42 x 20mm/3" x 1.7" x 0.8"(L*W*T) Main Color: Silver Tone; Hole Distance: 60 x 29mm/2.4" x 1.1"(L*W) Plate Size: 42 x 16 x13mm/1.7" x 0.63" x 0.5"(L*W*T); Total Length: 91mm/3.5"