All components are 316 stainless steel, except bolt retainers, which are made from 15-7 PH (UNS 15700) magnetic stainless steel. Rated at 100 percent at 90 degree angle. Each product has a Product Identification Code (PIC) for material traceability, along with the Working Load Limit and the name Crosby or "CG" stamped into it. Individually proof tested to 2 times the Working Load Limit with certification. Fatigue Rated to 20,000 cycles at 1-1/2 times the Working Load Limit. Washer is color-coded for easy identification (Silver - Metric thread)). Bolt specification is 316 stainless steel socket head cap screw to ASTM F 837M (316). BOLT SIZE IDENTIFICATION: The size of the bolt will be stated as in the drawing above. Illustration shows meaning of each dimension given.