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BACB30NN4K19
Bolt
Description
Fastener Length: 1-39/64", Thread: 1/4-28, Thread Length: 7/16"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 1.5975 inches minimum and 1.6275 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 1.1775 inches minimum and 1.1975 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 | 1 5/8 |
| 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 |
| Special Features | Identify w/black dye or paint on thread end |
| 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 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- NAS4204U19 NAS 1/4-28 · 0.073 in · Flat countersunk · Iron
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Catalog data updated 2026-07-05. Report a data error