Close Tolerance Bolt

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Thread: 1/4-28, Thread Length: 1/2

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NAS334CPA30 Features and Specification

Thread Class:
Thread Direction:
Thread Length:
0.443 inches minimum and 0.510 inches maximum
Fastener Length:
3.015 inches minimum and 3.062 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.497 inches minimum and 0.507 inches maximum
Grip Diameter:
0.2483 inches minimum and 0.2492 inches maximum
Internal Drive Style:
Cross recess type 1
Thread Diameter:
0.250 inches
Grip Length:
2.552 inches minimum and 2.572 inches maximum
Thready Qty Per Inch (tpi):
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c minimum overall and 40.0 rockwell c maximum overall
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Surface Finish:
32.0 microinches grip
Steel comp 4140 overall or steel comp e4340 overall or steel comp 6150 overall or steel comp 8735 overall or steel comp 8740 overall
Material Specification:
Mil-s-5626 mil spec 1st material response overall or mil-s-5000 mil spec 2nd material response overall or mil-s-8503 mil spec 3rd material response overall or mil-s-6098 mil spec 4th material response overall or mil-s-6049 mil spec 5th material response overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,ty 2,cl 3 fed spec all treatment responses overall
Thread Series Designator:
Specification Data:
80205-nas334 professional/industrial association standard

Additional Information

SKU / Model: NAS334CPA30
Minimum Qty (MOQ): 5
NSN: 5305-00-579-2095
FSC: Screws / 5305
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
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More NAS334CPA close tolerance bolts


$1.35 Each, Length: 0.907in., grip: 0.062in., thread: 1/4-28, 100°, close tolerance bolt - high strength - cruciform recess - undrilled


$0.55 EA, undrilled bolt Fastener Length: 15/16in., Thread: 1/4-28, Thread Length: 25/64in.


$0.55 Each, Length: 0.781in. grip: 0.312in. thread: 1/4-28 close tolerance bolt high strength cruciform recess undrilled


Fastener Length: 5-1/16in., Thread: 1/4-28, Thread Length: 1/2in.


length: 0.657", grip: 0.188", thread: 1/4-28, 100°, close tolerance bolt - high strength - cruciform recess - undrilled


Fastener Length: 3-15/16in., Thread: 1/4-28, Thread Length: 1/2in.

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