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Product Description

Part Number: 37FPTNCZ
Diameter/Pitch: 3/8"-24
Grade: Grade 8
Finish: Zinc Clear
Coarse / Fine Threads: Fine
Wrench Size: 9/16"
Click Here for Tech Drawing

BoltsandNuts.com

3/8"-24 Grade 8 Hex Prevailing Torque Top Lock Nuts Zinc

SKU: 37FPTNCZ
Product Description

Part Number: 37FPTNCZ
Diameter/Pitch: 3/8"-24
Grade: Grade 8
Finish: Zinc Clear
Coarse / Fine Threads: Fine
Wrench Size: 9/16"
Click Here for Tech Drawing

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Diameter Pitch3/8"-24
FinishZinc Clear
Thread Class2B
Width Across Flats0.562" (9/16")
Major Diameter0.3750"
Tensile Stress Area0.0878 sq in
Lock TypeTop Lock Nuts
Locking TypeAll-metal prevailing torque (distorted thread)
Break Away Torque6.5 in-lb min (fifth removal)
GradeGrade 8
MaterialMedium carbon steel, heat treated
Threads Per Inch24 TPI
Width Across Corners0.650" max
Proof Load13,170 lbf
HardnessRockwell C33–C39
Head TypeHex
Inch MetricInch
Max TemperatureRated to 450°F (all-metal)
Grade MaterialGrade 8
Coarse Fine ThreadsFine
Wrench Size9/16"
Head Height21/64"
Proof Stress150,000 psi
Head MarkingJ995 Grade 8 marking
Nominal Size3/8"
Prevailing Torque34 in-lb max (first installation)

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