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Unit of Measure

Manufacturer

Manufacturer

 N/A Industrial Fasteners Institute

Specifications

Product

 N/A Structural Bolting

Unit of Measure

 N/A English

Nominal Size or Basic Major Dia. of Thread

 N/A 1/2"-13

Ref. Thread Length (LT)

 N/A 1.00 in

Ref. Spline Length (LS)

 N/A 0.50 in

Ref. Spline Width Across Flats (S)

 N/A 0.32 in

Max. Center of Groove to 1st Fully Formed Thread (U)

 N/A 0.192 in

Ref. Transition Thread Length (Y)

 N/A 0.19 in

Codes and Standards

Codes and Standards

 N/A ASME Draft Revision B18.2.6 2003

Threads Per Inch

Threads Per Inch

 N/A 0.500

Heavy Hex Head Specifications

Max. Width Across Flats (F)

 N/A 0.875 in

Min. Width Across Flats (F)

 N/A 0.850 in

Max. Width Across Corners (G)

 N/A 1.010 in

Min. Width Across Corners (G)

 N/A 0.969 in

Heavy Hex & Round Head Specifications

Max. Head Height (H)

 N/A 0.323 in

Min. Head Height (H)

 N/A 0.302 in

Max. Full-Size Body Dia. (E)

 N/A 0.515 in

Min. Full-Size Body Dia. (E)

 N/A 0.482 in

Round Head Specifications

Min. Bearing Dia. (C)

 N/A 0.890 in

Max. Head Dia. (A)

 N/A 1.126 in
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