10x 1/2 UNC X 1. Skt Head Cap Screw 1936SER A2 High Grade Alloy Steel to BS EN ISO 898/1 Grade 12.9. Suitable for all high tensile applications. Maximum operating temperature (unplated): 300C. Dimensions to ANSI B 18.3 - 1936 & 1960 Series GBP 11.90 1
25x 1/2 SAE Washer - A2 Stainless Steel ASMEB18.21.1 1/2 SAE Washer - A2 Stainless Steel ASMEB18.21.1 by Qualfast GBP 7.25 1