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Product Description

Part Number: 31FFHN8Y
Diameter/Pitch: 5/16"-24
Grade: Grade 8
Finish: Zinc Yellow
Coarse / Fine Threads: Fine
Wrench Size: 1/2"
Click Here for Tech Drawing




BoltsandNuts.com

5/16"-24 Grade 8 Finished Hex Nuts Zinc Yellow

SKU: 31FFHN8Y
Product Description

Part Number: 31FFHN8Y
Diameter/Pitch: 5/16"-24
Grade: Grade 8
Finish: Zinc Yellow
Coarse / Fine Threads: Fine
Wrench Size: 1/2"
Click Here for Tech Drawing




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Diameter Pitch5/16"-24
FinishZinc Yellow
Thread Class2B
Width Across Flats0.500" (1/2")
Major Diameter0.3125"
Tensile Stress Area0.0581 sq in
Thread TypeFinished Hex
Nominal Size5/16"
GradeGrade 8
MaterialMedium carbon alloy steel, heat treated
Threads Per Inch24 TPI
Width Across Corners0.577" max
Proof Load8,710 lbf
HardnessRockwell C33–C39
Head TypeHex
Inch MetricInch
Grade MaterialGrade 8
Coarse Fine ThreadsFine
Wrench Size1/2"
Head Height17/64"
Proof Stress150,000 psi
Head MarkingJ995 Grade 8 marking
Height0.266" nom

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