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BACB30NM4K15

Bolt

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Description

Fastener Length: 1-3/8", Thread: 1/4-28, Thread Length: 27/64"

Specifications

Color Black threads
Fastener Length 1.348 inches minimum and 1.378 inches maximum
Grip Diameter 0.2485 inches minimum and 0.2495 inches maximum
Grip Length 0.928 inches minimum and 0.948 inches maximum
Head Height 0.125 inches minimum and 0.140 inches maximum
Head Style Dished hexagon
Length 1 3/8
Material Titanium
Material Specification Ams 4928 assn std single material response or ams 4967 assn std single material response
Min. Tensile Strength (psi) 160000 pounds per square inch
Surface Finish 63.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads
Surface Treatment Aluminum
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.425
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNJF
Thread Size 1/4
Width Between Flats 0.430 inches minimum and 0.439 inches maximum

Cross-reference

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