1/4"-20 Grade 8 Hex Prevailing Torque Top Lock Nuts Zinc

Product Description

Part Number: 25CPTNCZ
Diameter/Pitch: 1/4"-20
Grade: Grade 8
Finish: Zinc Clear
Coarse / Fine Threads: Coarse
Wrench Size: 7/16"
Click Here for Tech Drawing

BoltsandNuts.com

1/4"-20 Grade 8 Hex Prevailing Torque Top Lock Nuts Zinc

SKU: 25CPTNCZ

Product Description

Part Number: 25CPTNCZ
Diameter/Pitch: 1/4"-20
Grade: Grade 8
Finish: Zinc Clear
Coarse / Fine Threads: Coarse
Wrench Size: 7/16"
Click Here for Tech Drawing

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Diameter Pitch	1/4"-20
Finish	Zinc Clear
Thread Class	2B
Width Across Flats	0.438" (7/16")
Major Diameter	0.2500"
Tensile Stress Area	0.0318 sq in
Lock Type	Top Lock Nuts
Locking Type	All-metal prevailing torque (distorted thread)
Break Away Torque	3.5 in-lb min (fifth removal)

Grade	Grade 8
Material	Medium carbon steel, heat treated
Threads Per Inch	20 TPI
Width Across Corners	0.505" max
Proof Load	4,770 lbf
Hardness	Rockwell C33–C39
Head Type	Hex
Inch Metric	Inch
Max Temperature	Rated to 450°F (all-metal)

Grade Material	Grade 8
Coarse Fine Threads	Coarse
Wrench Size	7/16"
Head Height	7/32"
Proof Stress	150,000 psi
Head Marking	J995 Grade 8 marking
Nominal Size	1/4"
Prevailing Torque	18 in-lb max (first installation)