Description:

SIZE - Applicable Hole Dia: 3/16"(5mm); Under Head Size(Male): M4 x 5mm(D*L); Under Head Size(Female): 5 x 40mm(D*L); Screw Head Diameter: 9mm. Application - Fit for all kinds of DIY, leather crafts, clothing making, or as a fastener to connect two objects. Such as thin photo albums, leather bags, wooden board connections, etc.. Installation - Make a hole between 0.5-1mm larger than the diameter of the female rod, put the screw and nut on both sides of the locked object, and select the appropriate tool to lock it.. Easily Used - Used with a screwdriver. The threaded post lets you open and re-attached the piece where needed.. Advantage - Precision mechanical thread, made of carbon steel material, nickel plated finish, high hardness..