Spec hardware, served at warp speed.

bolts › machine bolts

BACB30NT4K5

Bolt

View quote list → Saved parts →

Description

Fastener Length: 45/64", Thread: 1/4-28, Thread Length: 3/8"

Specifications

Color Black threads
Fastener Length 0.686 inches minimum and 0.716 inches maximum
Grip Diameter 0.2485 inches minimum and 0.2495 inches maximum
Grip Length 0.302 inches minimum and 0.322 inches maximum
Head Diameter 0.473 inches minimum and 0.492 inches maximum
Head Height 0.162 inches minimum and 0.175 inches maximum
Head Style Pan Head
Internal Drive Style Cross recess type 1
Length 45/64
Material Titanium
Material Specification Ams 4928 assn std single material response or ams 4967 assn std single material response
Surface Finish 32.0 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 0.389
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNF
Thread Size 1/4

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 BACB30NT4K5. Try the cross-reference lookup to search by a different part number.

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