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Product Description

Part Number: 31C150BFL5Z
Diameter/Pitch: 5/16"-18
Length Under Head: 1-1/2"
Grade: Grade 5
Finish: Zinc Clear
Coarse / Fine Threads: Coarse
Partial / Full Threads: Partial
Wrench Size: 1/2"
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BoltsandNuts.com

5/16-18x1-1/2" Grade 5 Hex Flange Bolts Zinc Clear

SKU: 31C150BFL5Z
Product Description

Part Number: 31C150BFL5Z
Diameter/Pitch: 5/16"-18
Length Under Head: 1-1/2"
Grade: Grade 5
Finish: Zinc Clear
Coarse / Fine Threads: Coarse
Partial / Full Threads: Partial
Wrench Size: 1/2"
Click Here for Tech Drawing




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Diameter Pitch5/16-18
Grade MaterialGrade 5
Partial Full ThreadsPartial
Threads Per Inch18 TPI
Proof Load4,460 lbf
Tensile Strength120,000 psi
Tensile Stress Area0.0524 sq in
Torque Dry17 ft-lb
Head TypeHex Flange (Frame Bolt)
Length Under Head1-1/2"
FinishZinc Clear
Coarse Fine ThreadsCoarse
Wrench Size1/2"
Clamp Load3,340 lbf
Yield Strength92,000 psi
HardnessRockwell C25–C34
Torque Lubricated13 ft-lb
Nominal Size5/16"
GradeGrade 5
MaterialMedium carbon steel, quenched and tempered
Thread Class2A
Major Diameter0.312"
Min Tensile Load6,290 lbf
Proof Stress85,000 psi
Head MarkingThree radial lines on head
Length1-1/2"
Inch MetricInch

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