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BACB30NN4K28

Bolt

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Description

Fastener Length: 2-11/64", Thread: 1/4-28, Thread Length: 27/64"

Specifications

Countersink Angle 99.0 degrees minimum and 101.0 degrees maximum
Fastener Length 2.160 inches minimum and 2.190 inches maximum
Grip Diameter 0.2481 inches minimum and 0.2495 inches maximum
Grip Length 1.740 inches minimum and 1.760 inches maximum
Head Diameter 0.465 inches minimum and 0.510 inches maximum
Head Style Flat countersunk
Internal Drive Style Cross recess type 1
Length 2 3/16
Material Titanium
Part Name Assigned By Controlling Agency Bolt,100 deg,cross recess,160ksi min tensile,long thread
Surface Treatment Aluminum
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.420 inches minimum and 0.430 inches maximum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNJF
Thread Size 1/4

Other sizes

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

Cross-reference

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