Material: Made of high quality stainless steel, sturdy and durable enough, Package includes: 10 x 4 inch Sliding Latch,60 x Mounting Screw(M4 x16mm). Size:4 Inch, Main Bolt: 99 x 26 mm, receiver: 26 x 11mm, mounting hole diameter is 4mm. Easy to install: line up the bolt with the door and door frame and draw a dot with a pencil. Drill the holes in the frame and the door and screw it into the wood with the screws provided. The sliding bolt action provides a solid closing mechanism, it can be inserted to secure the door, providing enough strength and stability for any door. Easy to install: line up the bolt with the door and door frame and draw a dot with a pencil. Drill the holes in the frame and the door and screw it into the wood with the screws provided.