5/16"-24 Grade 8 Finished Hex Nuts Zinc Yellow

Product Description

Part Number: 31FFHN8Y
Diameter/Pitch: 5/16"-24
Grade: Grade 8
Finish: Zinc Yellow
Thread Series: Fine (UNF)
Wrench Size: 1/2"

BoltsandNuts.com

5/16"-24 Grade 8 Finished Hex Nuts Zinc Yellow

SKU: 31FFHN8Y

Product Description

Part Number: 31FFHN8Y
Diameter/Pitch: 5/16"-24
Grade: Grade 8
Finish: Zinc Yellow
Thread Series: Fine (UNF)
Wrench Size: 1/2"

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Thread Size	5/16"-24
Finish	Zinc Yellow
Thread Series	Fine (UNF)
Thread Class	2B
Specifications Met	ASME B18.2.2, SAE J995 Grade 8

Grade	Grade 8
Head Type	Hex
Head Height	17/64"
Proof Load (min)	8,710 lbf
Thread Type	Finished Hex

Material	Medium carbon alloy steel, heat treated
Wrench Size	1/2"
Head Marking	J995 Grade 8 marking
Hardness	Rockwell C24–C32
Height	0.266" nom

Technical Drawing

Not to scale · ASME B18.2.2 · See table for exact dimensions

Technical Dimensions

Width Across Flats	0.500" (1/2")
Nut Height	0.266" nom
Thread Size	5/16"-24
Width Across Corners	0.577" max
Thread Class	2B
Proof Load	8,710 lbf
Hardness	Rockwell C24–C32

Six-sided nut with internal threads and flat bearing faces for standard wrench engagement. Chamfered on both faces for easy starting and full thread engagement with mating bolts.

Dimensions conform to ASME B18.2.2 and may vary within specified manufacturing tolerances.