Unit of Measure

Manufacturer

Manufacturer

Industrial Fasteners Institute

Specifications

Product

Nuts

Unit of Measure

English

Nominal Size or Basic Major Dia. of Thread

1/2 in

Nominal Size or Basic Major Dia. of Thread (Decimal)

0.5000 in

Basic Width Across Flats (F)

7/8 in

Max. Width Across Flats (F)

0.875 in

Min. Width Across Flats (F)

0.850 in

Max. Width Across Corners (G)

1.010 in

Min. Width Across Corners (G)

0.969 in

Basic Thickness (H)

31/64 in

Max. Thickness (H)

0.504 in

Min. Thickness (H)

0.464 in

Max. Unslotted Thickness (T)

0.34 in

Min. Unslotted Thickness (T)

0.32 in

Max. Width of Slot (S)

0.18 in

Min. Width of Slot (S)

0.150 in

Max. Runout of Bearing Surface FIM

0.023 in

Codes and Standards

Codes and Standards

ASME/ANSI B18.2.2 1987 (R 1999)
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