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3M1277E4D6A

Bolt

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Description

Bolt part number 3M1277E4D6A

Specifications

Countersink Angle 99.0 degrees minimum and 101.0 degrees maximum
Criticality Code Justification Agav
Fastener Length 0.785 inches minimum and 0.815 inches maximum
Grip Diameter 0.2646 inches minimum and 0.2651 inches maximum
Grip Length 0.365 inches minimum and 0.385 inches maximum
Head Diameter 0.265 inches minimum and 0.272 inches maximum
Head Height 0.057
Head Style Fillister countersunk
Material Nickel
Material Specification Ams 5662 assn std single material response
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
Surface Treatment Passivate
Surface Treatment Specification Mil-l-87132,ty 1,gr b mil spec single treatment response
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.410 inches minimum and 0.440 inches maximum
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNJF

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

No interchangeable or dimensionally similar parts are on record for 3M1277E4D6A. Try the cross-reference lookup to search by a different part number.

Catalog data updated 2026-07-05. Report a data error