MIL-S-1222H, MILITARY SPECIFICATION: STUDS, BOLTS, HEX CAP SCREWS, SOCKET HEAD CAP SCREWS AND NUTS (21 OCT 1986) [SUPERSEDING MIL-S-001222G) AND MIL-S-1222F] [S/S BY MIL-DTL-1222J]
MIL-S-1222H, MILITARY SPECIFICATION: STUDS, BOLTS, HEX CAP SCREWS, SOCKET HEAD CAP SCREWS AND NUTS (21 OCT 1986) [SUPERSEDING MIL-S-001222G) AND MIL-S-1222F] [S/S BY MIL-DTL-1222J]., This specification covers standard studs, bolts, hex cap
screws, socket head cap screws, and nuts in diameters of 1/4 inch and larger
for critical applications where a high degree of reliability is required.