bolts › close tolerance bolts
BACB30LU4-7
Close Tolerance Bolt
Description
Fastener Length: 7/8", Thread: 1/4-28, Thread Length: 7/16
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Fastener Length | 0.848 inches minimum and 0.878 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.428 inches minimum and 0.448 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 | 7/8 |
| Material | Steel |
| Surface Finish | 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| 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
No interchangeable or dimensionally similar parts are on record for BACB30LU4-7. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error