screws › close tolerance screws
BACB30JC8-14
Screw
Description
Fastener Length: 1-17/64", Thread: 1/4-28, Head Width: 3/32", Thread Length: 13/32"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 1.260 inches minimum and 1.280 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.870 inches minimum and 0.880 inches maximum |
| Head Diameter | 0.464 inches minimum and 0.510 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Hexagon |
| Length | 1 17/64 |
| Material | Steel |
| Special Features | Drilled hole thd end 0.122 to 0.142 in. dia,0.200 in. deep |
| Surface Finish | 32.0 microinches grip, 63.0 microinches bearing surface of head |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.380 inches minimum and 0.410 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Across Flats | 0.095 inches minimum and 0.097 inches maximum |
Cross-reference
No interchangeable or dimensionally similar parts are on record for BACB30JC8-14. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error