20-057-4-14D
Bolt
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Description:
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Fastener Length: 1-19/64", Thread: 1/4-28, Thread Length: 27/64"

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20-057-4-14D Datasheet Features and Specification
Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.425 inches nominal
Fastener Length:
1.300 inches nominal
Head Style:
Hexagon
Head Height:
0.125 inches minimum and 0.140 inches maximum
Width Between Flats:
0.430 inches minimum and 0.439 inches maximum
Grip Diameter:
0.2485 inches minimum and 0.2495 inches maximum
Shank Unthreaded Hole Diameter:
0.076 inches minimum first hole and 0.086 inches maximum first hole
Thread Diameter:
0.250 inches
Grip Length:
0.875 inches nominal
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c minimum overall and 40.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center:
1.122 inches nominal first hole
Material:
Steel overall
Material Specification:
Mil-b-7838 mil spec single material response overall
Surface Treatment:
Cadmium overall
Surface Treatment Specification:
Qq-p-416,type 2,class 2 fed spec single treatment response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size | 1/4 |
Thread Qty | 28 |
Material | Steel |
Length | 1-19/64 |
Additional Information
SKU / Model: | 20057414D |
NSN: | 5306-01-026-0381 |
FSC: | Bolts / 5306 |
Product Series: | 20 |
Pack Weight (Approx.) | 0.000 lb |
Minimum Qty (MOQ): | 10 EA |
Schedule B: | 7318.15.8085 |
ECCN: | 9A991 |
National Motor Freight: | 093486, Bolts,nuts Or Screws, Noi (sub 3) |
Download PDF Version 20-057-4-14D_Military-Fasteners-com.pdf |
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