Part of wide-using & popular model, they used to be put in wooden furniture, steel furniture and any place you can imagine, hex socket makes it easier to operate with allen key.
1. M6-1.0; length: 10~80 mm.
2. M8-1.25; length: 12~100 mm.
3. Head diameter: type BC 13mm; type BD 15m; type BB 17mm.
4. Hex socket: 4mm; 5mm.
5. Inch size is also available.