The 4oz Custom Bow Equipment Torx stabilizer weight has a black nitride coating to eliminate chipping. This Custom Bow Equipment pack comes with one stainless steel 4oz weights and a mounting stud. The weight threads of the CBE stabilizer weight are 5/16" x 24. Black Nitride coating to eliminate chipping Stainless steel weight Mounting stud included Available in 1 oz (3 pack), 4 oz and 8 oz 5/16" x 24 weight threads WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov