Finished Hex Nut

Finished Hex Nut also referred to as a standard hex nut, has a smaller width across the flats and corners compared to a heavy hex nut.

STANDARD - ASTM A194
Grade Thread Series Diameter Material
2H UNC 1/4 TO 1 1/8" CARBON
2H UNF 1/2" CARBON
2H 8UN 1 1/8 TO 1 1/4" CARBON
2HM UNC 1/4 TO 1 1/4" CARBON
4 UNC 7/16 TO 1" CARB. MOLY.
4 8UN 1 1/8 TO 1 1/4" CARB. MOLY.
8 UNC 1/4 TO 1 1/4" 304
8 STRAIN HARDENED UNC 1/4 TO 1 1/4" 304
8M UNC 1/4 TO 1 1/4" 316
8M STRAIN HARDENED UNC 1/4 TO 1" 316
STAINLESS & NON-FERROUS
Grade Thread Series Diameter
Finish Hex
Diameter
Heavy Hex
304 UNC 1/4 TO 1 1/4" 1/4 TO 1 3/4"
304 ELC UNC 5/16 TO 1"
304 STRAIN HARDENED UNC 1/4 TO 1" 3/8 TO 1"
304 STRAIN HARDENED 8UN 1 1/8 TO 1 1/4"
309 UNC 1/4 TO 1"
310 UNC 1/4 TO 1" 3/8 TO 1"
316 UNC 1/4 TO 1 7/8" 1/4 TO 1 3/4"
316 ELC UNC 3/8 TO 1 1/4" 1/4 TO 1 1/4"
316 STRAIN HARDENED UNC 1/4 TO 1" 3/8 TO 1"
316 STRAIN HARDENED 8UN 1 1/8 TO 1 1/2"
317 ELC UNC 3/8 TO 3/4"
321 UNC 5/8 TO 3/4" 3/8 TO 1"
321 8UN 1 1/8 TO 1 1/2"
410 UNC 1/4 TO 1" 1/4 TO 1"
410 8UN 1/8 TO 2 3/4"
416 UNC 1/2 TO 1"
Alloy 20 UNC 1/4 TO 1 1/4" 1/4 TO 1"
Alloy 400 UNC 1/4 TO 1 1/2" 3/8 TO 1 1/4"
DUPLEX 2205 3/8 TO 3/4"
Hastelloy C1 UNC 3/8 TO 3/4"
Silicon Bronze UNC 1/4 TO 3/4"
HEX COUPLING NUTS - STAINLESS STEEL
Grade Thread Series Size
18/8 UNC 1/4 TO 1 1/2"