Unit of Measure

Manufacturer

Manufacturer

Industrial Fasteners Institute

Specifications

Product

Nuts

Unit of Measure

English

Nominal Size or Basic Major Dia. of Thread

2-1/4 in

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

2.2500 in

Basic Width Across Flats (F)

3-1/2 in

Max. Width Across Flats (F)

3.500 in

Min. Width Across Flats (F)

3.388 in

Max. Width Across Corners (G)

4.041 in

Min. Width Across Corners (G)

3.862 in

Basic Thickness (H)

2-13/64 in

Max. Thickness (H)

2.251 in

Min. Thickness (H)

2.155 in

Max. Unslotted Thickness (T)

1.67 in

Min. Unslotted Thickness (T)

1.620 in

Max. Width of Slot (S)

0.52 in

Min. Width of Slot (S)

0.43 in

Max. Runout of Bearing Surface FIM

0.061 in

Codes and Standards

Codes and Standards

ASME/ANSI B18.2.2 1987 (R 1999)
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