UNC A2 Stainless Steel Hex Dome Cover Nuts 1/4", 5/16" 3/8", 7/16", 1/2" & 5/8"

5/16" 0.5433 0.5236 18. 1/2" 0.7283 0.8070 13. 1/4" 0.4291 0.4645 20. 5/8" 0.98425 0.996062 11. 7/16" 0.6102 0.7125 14. TECHNICAL INFORMATION.

eBay