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BACB30LR4-32

Machine Bolt

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Description

Fastener Length: 2-7/16", Thread: 1/4-28, Thread Length: 7/16"

Specifications

Countersink Angle 100.0 degrees
Fastener Length 2.410 inches minimum and 2.440 inches maximum
Grip Diameter 0.2485 inches minimum and 0.2495 inches maximum
Grip Length 1.990 inches minimum and 2.010 inches maximum
Head Diameter 0.455 inches minimum and 0.510 inches maximum
Head Style Flat countersunk
Internal Drive Style Cross recess type 1
Length 2 7/16
Material Iron
Surface Finish 32.0 microinches grip, 32.0 microinches threads
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416,type 2,class 3 fed spec single treatment response
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.400 inches minimum and 0.450 inches maximum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNJF
Thread Size 1/4

Cross-reference

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