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Product Description

Part Number: 56FPTNCZ
Diameter/Pitch: 9/16"-18
Grade: Grade 8
Finish: Zinc Clear
Coarse / Fine Threads: Fine
Wrench Size: 7/8"
Click Here for Tech Drawing

BoltsandNuts.com

9/16"-18 Grade 8 Hex Prevailing Torque Top Lock Nuts Zinc

SKU: 56FPTNCZ
Product Description

Part Number: 56FPTNCZ
Diameter/Pitch: 9/16"-18
Grade: Grade 8
Finish: Zinc Clear
Coarse / Fine Threads: Fine
Wrench Size: 7/8"
Click Here for Tech Drawing

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Diameter Pitch9/16"-18
FinishZinc Clear
Thread Class2B
Width Across Flats0.875" (7/8")
Major Diameter0.5625"
Tensile Stress Area0.2030 sq in
Lock TypeTop Lock Nuts
Locking TypeAll-metal prevailing torque (distorted thread)
GradeGrade 8
MaterialMedium carbon steel, heat treated
Threads Per Inch18 TPI
Width Across Corners1.010" max
Proof Load30,450 lbf
HardnessRockwell C33–C39
Head TypeHex
Inch MetricInch
Grade MaterialGrade 8
Coarse Fine ThreadsFine
Wrench Size7/8"
Head Height31/64"
Proof Stress150,000 psi
Head MarkingJ995 Grade 8 marking
Nominal Size9/16"
Max TemperatureRated to 450°F (all-metal)

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