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BACB30LU7-39

Screw

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Description

Fastener Length: 3-9/64", Thread: 7/16-20, Thread Length: 11/16"

Specifications

Countersink Angle 99.0 degrees minimum and 101.0 degrees maximum
Fastener Length 3.1165 inches minimum and 3.1465 inches maximum
Grip Diameter 0.4360 inches minimum and 0.4370 inches maximum
Grip Length 2.4275 inches minimum and 2.4475 inches maximum
Head Diameter 0.809 inches minimum and 0.892 inches maximum
Head Style Flat countersunk
Internal Drive Style Cross recess type 1
Length 3 9/64
Material Steel
Material Specification Mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams 6322 assn std 2nd material response
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416, type 2 class 2 fed spec single treatment response
Thread Class 3a
Thread Diameter 0.4375
Thread Direction Right-hand
Thread Length 0.694
Thread Qty 20
Thread Qty Per Inch (tpi) 20
Thread Series Designator UNJF
Thread Size 7/16

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 BACB30LU7-39. Try the cross-reference lookup to search by a different part number.

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