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Sales Systems Limited Products and Services > Fasteners Reference Guide > Nuts > Hex Nuts > Hex Coupling Nuts > Item # HCN12500XXX  
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Item # HCN12500XXX, Hex Coupling Nut, 1.2500" Nominal Dia.



IFI-128 is a standard developed through the procedures of Industrial Fasteners Institute. IFI-128 was first published in 1978 and reaffirmed, without technical change, in 1986 and in 2000.




Manufacturer  · Specifications  · Codes and Standards

Manufacturer

Manufacturer

Industrial Fasteners Institute


Specifications

Product

Nuts

Unit of Measure

English

Nominal Size or Basic Major Dia. of Thread

1-1/4 in

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

1.2500 in

Basic Width Across Flats (F)

1-7/8 in

Max. Width Across Flats (F)

1.875 in

Min. Width Across Flats (F)

1.812 in

Max. Width Across Corners (G)

2.165 in

Min. Width Across Corners (G)

2.066 in

Basic Thickness (H)

3-3/4 in

Max. Thickness (H)

3.78 in

Min. Thickness (H)

3.71 in


Codes and Standards

Codes and Standards

IFI-128 2000


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