The 3/16 Csk Alum/Steel Rivet max. 7.9mm is crafted for demanding applications, constructed from Aluminium & Steel, featuring a 4.8mm (3/16) diameter with a polished finish, with countersunk head style, requiring a 4.9mm hole, accommodating a grip range of 6.4-7.9mm, measuring 12.9mm in length.