Opall Universal Jeep Wrangler Hard Top Quick Removal Fastener Thumb Screw and Nut Kit for Jeep Wrangler YJ TJ JK JKU Sports Sahara Freedom Rubicon X & Unlimited X 2/4 Door 1995-2016 package included : set of 8 Thumb Screws, Washers, and Nut Plates.No modifications required. Thumb screws are made of durable nylon Hurricane styled head with galvonized steel stud. Washer is galvonized steel with rubber bonded backing that grips stud to stay in place. Nut is made of galvonized steel. No loose parts. Fasteners store in the body holes when top is off (rubber laminated washer protects paint).