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Product Description

Part Number: 31FSLN5Z
Diameter/Pitch: 5/16"-24
Grade: Grade 5
Finish: Zinc Clear
Coarse / Fine Threads: Fine
Wrench Size: 1/2"
Click Here for Tech Drawing

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5/16"-24 Grade 5 Serrated Hex Flange Lock Nuts Zinc

SKU: 31FSLN5Z
Product Description

Part Number: 31FSLN5Z
Diameter/Pitch: 5/16"-24
Grade: Grade 5
Finish: Zinc Clear
Coarse / Fine Threads: Fine
Wrench Size: 1/2"
Click Here for Tech Drawing

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Diameter Pitch5/16"-24
FinishZinc Clear
Thread Class2B
Width Across Flats0.500" (1/2")
Major Diameter0.3125"
Tensile Stress Area0.0581 sq in
Head TypeSlotted Hex
GradeGrade 5
MaterialMedium carbon steel, quenched and tempered
Threads Per Inch24 TPI
Width Across Corners0.577" max
Proof Load6,970 lbf
HardnessRockwell C25–C34
Nominal Size5/16"
Grade MaterialGrade 5
Coarse Fine ThreadsFine
Wrench Size1/2"
Head Height17/64"
Proof Stress120,000 psi
Head MarkingJ995 Grade 5 marking
Inch MetricInch

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