DescriptionThomson BSA uses SAE 660 bearing bronze for standard bronze nuts.SAE 660 bearing bronze which provides excellent load carrying ability, good wear resistance and is less susceptible to damage from impact and shock loading.DimensionA44.5 mm (1.75 in)B44.5 mm (1.75 in)C12.7 mm (0.50 in)TH1 9/16-18PerformanceMax Dynamic Load13,345 N (3,000 lbf)