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Product Description

Part Number: 31CPTNCZ
Diameter/Pitch: 5/16"-18
Grade: Grade 8
Finish: Zinc Clear
Coarse / Fine Threads: Coarse
Wrench Size: 1/2"
Click Here for Tech Drawing




BoltsandNuts.com

5/16"-18 Grade 8 Hex Prevailing Torque Top Lock Nuts Zinc

SKU: 31CPTNCZ
Product Description

Part Number: 31CPTNCZ
Diameter/Pitch: 5/16"-18
Grade: Grade 8
Finish: Zinc Clear
Coarse / Fine Threads: Coarse
Wrench Size: 1/2"
Click Here for Tech Drawing




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Diameter Pitch5/16"-18
FinishZinc Clear
Threads Per Inch18 TPI
Proof Load7,860 lbf
Lock TypeTop Lock Nuts
Prevailing Torque24 in-lb max (first installation)
GradeGrade 8
MaterialMedium carbon steel, heat treated
Width Across Flats0.500" (1/2")
Proof Stress150,000 psi
Locking TypeAll-metal prevailing torque (distorted thread)
Break Away Torque4.5 in-lb min (fifth removal)
Grade MaterialGrade 8
Thread Class2B
Width Across Corners0.577" max
Tensile Stress Area0.0524 sq in
Inch MetricInch
Max TemperatureRated to 450°F (all-metal)

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