Skip to content
Product Description

Part Number: 31FFHN8PL
Diameter/Pitch: 5/16"-24
Grade: Grade 8
Finish: Plain
Coarse / Fine Threads: Fine
Wrench Size: 1/2"
Click Here for Tech Drawing




BoltsandNuts.com

5/16"-24 Grade 8 Finished Hex Nuts Plain

SKU: 31FFHN8PL
Product Description

Part Number: 31FFHN8PL
Diameter/Pitch: 5/16"-24
Grade: Grade 8
Finish: Plain
Coarse / Fine Threads: Fine
Wrench Size: 1/2"
Click Here for Tech Drawing




Promo

B&N Pro eligible item. Save 10% when you join Pro. Learn more.

1
$0.17/pc
Popular
150
$0.13/pc
300
$0.11/pc
750
$0.08/pc
Best Value
3400
$0.06/pc
$0.17
B&N Pro $0.00 Member Price
(Shipping $8.95) Add [amount] more for FREE SHIPPING
Diameter Pitch5/16"-24
FinishPlain
Thread Class2B
Width Across Flats0.500" (1/2")
Major Diameter0.3125"
Tensile Stress Area0.0581 sq in
Thread TypeFinished Hex
Nominal Size5/16"
GradeGrade 8
MaterialMedium carbon alloy steel, heat treated
Threads Per Inch24 TPI
Width Across Corners0.577" max
Proof Load8,710 lbf
HardnessRockwell C33–C39
Head TypeHex
Inch MetricInch
Grade MaterialGrade 8
Coarse Fine ThreadsFine
Wrench Size1/2"
Head Height17/64"
Proof Stress150,000 psi
Head MarkingJ995 Grade 8 marking
Height0.266" nom

Related Items

Everything you need for this fastener — pick your pack sizes and add them all at once.

5/16"-24 Grade 8 Finished Hex Nuts Plain
B&N Pro $0.00 Member Price
5/16" SAE Grade 8 Flat Washers Plain
B&N Pro $0.00 Member Price
5/16" Alloy Split Lock Washers Plain
B&N Pro $0.00 Member Price
5/16-24x6" Hex Cap Screws Grade 5 Bolts Zinc Clear
B&N Pro $0.00 Member Price
5/16"-24 Grade 8 Hex Nylon Insert Lock Nuts Zinc Yellow
B&N Pro $0.00 Member Price
5/16" Steel Internal Tooth Lock Washer Zinc
B&N Pro $0.00 Member Price
0 items $0.00