5/16"-18x1/2" Hex Cap Screws Grade L-9 Bolts USA Zinc Yellow

Product Description

Part Number: 31C50HCSL9Y
Diameter/Pitch: 5/16"-18
Length Under Head: 1/2"
Grade: Grade L-9
Finish: Zinc Yellow
Coarse / Fine Threads: Coarse
Partial / Full Threads: Full
Wrench Size: 1/2"
Country of Origin: USA

BoltsandNuts.com

5/16"-18x1/2" Hex Cap Screws Grade L-9 Bolts USA Zinc Yellow

SKU: 31C50HCSL9Y

Product Description

Part Number: 31C50HCSL9Y
Diameter/Pitch: 5/16"-18
Length Under Head: 1/2"
Grade: Grade L-9
Finish: Zinc Yellow
Coarse / Fine Threads: Coarse
Partial / Full Threads: Full
Wrench Size: 1/2"
Country of Origin: USA

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Diameter Pitch	5/16"-18
Grade Material	Grade L-9
Partial Full Threads	Full
Threads Per Inch	18 TPI
Width Across Corners	0.577" max
Proof Load	7,390 lbf
Tensile Strength	180,000 psi
Tensile Stress Area	0.0524 sq in
Torque Dry	29 ft-lb
Head Type	Hex Cap

Length Under Head	1/2"
Finish	Zinc Yellow
Coarse Fine Threads	Coarse
Wrench Size	1/2"
Head Height	0.195" – 0.211"
Clamp Load	5,540 lbf
Yield Strength	160,000 psi
Hardness	Rockwell C37–C45
Torque Lubricated	22 ft-lb
Nominal Size	5/16"

Grade	Grade L-9
Material	Medium carbon alloy steel, quenched and tempered
Thread Class	3A
Width Across Flats	0.500" (1/2")
Major Diameter	0.312"
Min Tensile Load	9,440 lbf
Proof Stress	141,000 psi
Head Marking	L9 head marking
Length	1/2"
Inch Metric	Inch