1-8 GR2 HEX NUT HDG .024” SAE J995 GRADE 2 HEX NUT HDG ASME/ANSI B18.2.2 1987 IFI-7 AF 1.450-1.500” TH 0.831-0.887” – 20/BOX Tapped Over Size per ASTM A 153 class C