Hex head with partial wide pictch theads , sharp point to drill into wooden part to fix material . Popular metric diamter have 1.6、2、2.5、3、3.5、4、5、6、7、8、10 , max length can be up to 150mm , Grade of product : 4.8 Finish of surface : Blue zinc Size of product : 5x50 Thread angle : 50 degree Point agnle : 36 degree Regarding different sizes and specification of wood screws , please see " Wood Screw Standard " in Technology . |