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Heavy Hex Nuts1
Unit of Measure
1 2 

Item #

Description

Nominal Size or Basic Major Dia. of Thread

Basic (F)

Max. (G)

Basic (H)

Max. Runout of Bearing Face, FIM (Specified Proof Load Up to 150,000 psi)

HHN02500XXX N/A Heavy Hex Nut, 1/4" Nominal Dia. N/A 1/4 in N/A 1/2 in N/A 0.577 in N/A 15/64 in N/A 0.017 in
HHN03125XXX N/A Heavy Hex Nut, 5/16" Nominal Dia. N/A 5/16 in N/A 9/16 in N/A 0.650 in N/A 19/64 in N/A 0.020 in
HHN03750XXX N/A Heavy Hex Nut, 3/8" Nominal Dia. N/A 3/8 in N/A 11/16 in N/A 0.794 in N/A 23/64 in N/A 0.021 in
HHN04375XXX N/A Heavy Hex Nut, 7/16" Nominal Dia. N/A 7/16 in N/A 3/4 in N/A 0.866 in N/A 27/64 in N/A 0.022 in
HHN05000XXX N/A Heavy Hex Nut, 1/2" Nominal Dia. N/A 1/2 in N/A 7/8 in N/A 1.010 in N/A 31/64 in N/A 0.023 in
HHN05625XXX N/A Heavy Hex Nut, 9/16" Nominal Dia. N/A 9/16 in N/A 15/16 in N/A 1.083 in N/A 35/64 in N/A 0.024 in
HHN06250XXX N/A Heavy Hex Nut, 5/8" Nominal Dia. N/A 5/8 in N/A 1-1/16 in N/A 1.227 in N/A 39/64 in N/A 0.025 in
HHN07500XXX N/A Heavy Hex Nut, 3/4" Nominal Dia. N/A 3/4 in N/A 1-1/4 in N/A 1.443 in N/A 47/64 in N/A 0.027 in
HHN08750XXX N/A Heavy Hex Nut, 7/8" Nominal Dia. N/A 7/8 in N/A 1-7/16 in N/A 1.660 in N/A 55/64 in N/A 0.029 in
HHN10000XXX N/A Heavy Hex Nut, 1" Nominal Dia. N/A 1 in N/A 1-5/8 in N/A 1.876 in N/A 63/64 in N/A 0.031 in
HHN11250XXX N/A Heavy Hex Nut, 1-1/8" Nominal Dia. N/A 1-1/8 in N/A 1-13/16 in N/A 2.093 in N/A 1-7/64 in N/A 0.033 in
HHN12500XXX N/A Heavy Hex Nut, 1-1/4" Nominal Dia. N/A 1-1/4 in N/A 2 in N/A 2.309 in N/A 1-7/32 in N/A 0.035 in
HHN13750XXX N/A Heavy Hex Nut, 1-3/8" Nominal Dia. N/A 1-3/8 in N/A 2-3/16 in N/A 2.526 in N/A 1-11/32 in N/A 0.038 in
HHN15000XXX N/A Heavy Hex Nut, 1-1/2" Nominal Dia. N/A 1-1/2 in N/A 2-3/8 in N/A 2.742 in N/A 1-15/32 in N/A 0.041 in
HHN16250XXX N/A Heavy Hex Nut, 1-5/8" Nominal Dia. N/A 1-5/8 in N/A 2-9/16 in N/A 2.959 in N/A 1-19/32 in N/A 0.044 in
HHN17500XXX N/A Heavy Hex Nut, 1-3/4" Nominal Dia. N/A 1-3/4 in N/A 2-3/4 in N/A 3.175 in N/A 1-23/32 in N/A 0.048 in
HHN18750XXX N/A Heavy Hex Nut, 1-7/8" Nominal Dia. N/A 1-7/8 in N/A 2-15/16 in N/A 3.392 in N/A 1-27/32 in N/A 0.051 in
HHN20000XXX N/A Heavy Hex Nut, 2" Nominal Dia. N/A 2 in N/A 3-1/8 in N/A 3.608 in N/A 1-31/32 in N/A 0.055 in
HHN22500XXX N/A Heavy Hex Nut, 2-1/4" Nominal Dia. N/A 2-1/4 in N/A 3-1/2 in N/A 4.041 in N/A 2-13/64 in N/A 0.061 in
HHN25000XXX N/A Heavy Hex Nut, 2-1/2" Nominal Dia. N/A 2-1/2 in N/A 3-7/8 in N/A 4.474 in N/A 2-29/64 in N/A 0.068 in
HHN27500XXX N/A Heavy Hex Nut, 2-3/4" Nominal Dia. N/A 2-3/4 in N/A 4-1/4 in N/A 4.907 in N/A 2-45/64 in N/A 0.074 in
HHN30000XXX N/A Heavy Hex Nut, 3" Nominal Dia. N/A 3 in N/A 4-5/8 in N/A 5.340 in N/A 2-61/64 in N/A 0.081 in
HHN32500XXX N/A Heavy Hex Nut, 3-1/4" Nominal Dia. N/A 3-1/4 in N/A 5 in N/A 5.774 in N/A 3-3/16 in N/A 0.087 in
HHN35000XXX N/A Heavy Hex Nut, 3-1/2" Nominal Dia. N/A 3-1/2 in N/A 5-3/8 in N/A 6.207 in N/A 3-7/16 in N/A 0.094 in
HHN37500XXX N/A Heavy Hex Nut, 3-3/4" Nominal Dia. N/A 3-3/4 in N/A 5-3/4 in N/A 6.640 in N/A 3-11/16 in N/A 0.100 in
Unit of Measure
1 2