Product Description Size and quantity; (optional): M6 * 10mm 20pcs (optional) M6 * 13mm 20pcs (optional) M6 * 15mm 20pcs (optional) M6 * 17mm 20pcs (optional) M6 * 20mm 20 pcs (optional) M6 * 25mm 20 pcs (optional) M8 * 13mm 20 pcs (optional) M8 * 15mm 20 pcs (optional) M8 * 17mm 20 pcs (optional) M8 * 20mm 20 pcs (optional ) M8 * 25mm 20 pcs (optional) M10 * 25mm 20 pcs (optional) Package include: 20pcs x Insert Nuts Features: Material: carbon steel zinc-plated Type: screw & agrave; hexagon socket Package includes: 20 pieces x insert nuts Description: One insert nut provides one threaded sleeve for one piece. this in wood, similar & agrave; a wall anchor. These insert nuts are inserted into a pre-drilled hole. by screw, in this case the external protrusions bite into the wood, preventing the nut from turning or withdrawing. Features: These insert nuts are manufactured. s in zinc-plated carbon steel; of high quality for durability and rust protection. Insertion nuts & agrave; screw