3M1277E4D4A

Bolt

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Description:

Fastener Length: 11/16", Thread: 1/4-28, Thread Length: 7/16"

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3M1277E4D4A Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.410 inches minimum and 0.440 inches maximum
Fastener Length:
0.660 inches minimum and 0.690 inches maximum
Head Style:
Fillister countersunk
Head Diameter:
0.265 inches minimum and 0.272 inches maximum
Head Height:
0.057 inches nominal
Grip Diameter:
0.2646 inches minimum and 0.2651 inches maximum
Thread Diameter:
0.250 inches
Grip Length:
0.240 inches minimum and 0.260 inches maximum
Thready Qty Per Inch (tpi):
28
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Criticality Code Justification:
Agav
Part Name Assigned By Controlling Agency:
Bolt,100 deg reduced head,gear drive recess,inconel 718 (125 ksi shear),0.0156 inch oversize
Special Features:
Internal drive recess per nas 1800
Material:
Nickel alloy 718 overall
Material Specification:
Ams 5662 assn std single material response overall
Surface Treatment:
Passivate overall
Surface Treatment Specification:
Mil-l-87132,ty 1,gr b mil spec single treatment response overall
Supplementary Features:
0.076 inch dia cotter pin hole at the tip of the bolt 0.106 inch from the end
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Nickel
Length 11/16

Additional Information

SKU / Model: 3M1277E4D4A
NSN: 5306-01-536-4429
FSC: Bolts / 5306
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7508.90.5000
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
3M1277E4D4A_Military-Fasteners-com.pdf
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