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Product Description

Part Number: 37CNFNFZ
Diameter/Pitch: 3/8"-16
Grade: Grade 5
Finish: Zinc Clear
Thread Series: Coarse (UNC)
Wrench Size: 9/16"

BoltsandNuts.com

3/8"-16 Grade 5 Nylon Insert Hex Flange Lock Nuts Zinc

SKU: 37CNFNFZ
Product Description

Part Number: 37CNFNFZ
Diameter/Pitch: 3/8"-16
Grade: Grade 5
Finish: Zinc Clear
Thread Series: Coarse (UNC)
Wrench Size: 9/16"

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Thread Size3/8"-16
FinishZinc Clear
Thread SeriesCoarse (UNC)
Proof Load (min)9,300 lbf
Max Temperature250°F (nylon insert limit)
GradeGrade 5
Head TypeHex Flange
Head MarkingJ995 Grade 5 marking
HardnessRockwell C25–C34
MaterialMedium carbon steel, quenched and tempered
Wrench Size9/16"
Thread Class2B
Locking TypeNylon Insert (Prevailing Torque)
Technical Drawing
TOP VIEWnylon insertFRONT VIEW
Not to scale · IFI-100/107 · See table for exact dimensions

Technical Dimensions

Wrench Size 9/16"
Thread Size 3/8"-16
Threads Per Inch 16 TPI
Thread Class 2B
Flange Style Nylon Insert Flange Nuts
Head Type Hex Flange
Material Medium carbon steel, quenched and tempered
Hex flange nut with a nylon insert ring at the top that grips the bolt thread to resist vibration loosening, and an integral flange that spreads load like a built-in washer. Not for use above the insert temperature limit.

Dimensions conform to IFI-100/107 and may vary within specified manufacturing tolerances.

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