Unit of Measure

Manufacturer

Manufacturer

N/A Industrial Fasteners Institute

Specifications

Product

N/A Nuts

Unit of Measure

N/A English

Nominal Size or Basic Major Dia. of Thread

N/A 5/16 in

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

N/A 0.3125 in

Basic Width Across Flats (F)

N/A 9/16 in

Max. Width Across Flats (F)

N/A 0.562 in

Min. Width Across Flats (F)

N/A 0.546 in

Max. Width Across Corners (G)

N/A 0.650 in

Min. Width Across Corners (G)

N/A 0.622 in

Basic Thickness (H)

N/A 19/64 in

Max. Thickness (H)

N/A 0.314 in

Min. Thickness (H)

N/A 0.280 in

Codes and Standards

Codes and Standards

N/A ASME/ANSI B18.2.2 1987 (R 1999)

Runout of Bearing Face, FIM

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

N/A 0.020 in

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

N/A 0.012 in
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