screws › close tolerance screws
BACB30LH3-4
Close Tolerance Screw
Description
Close Tolerance Screw
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Fastener Length | Between 0.580 inches and 0.610 inches |
| Grip Diameter | Between 0.1885 inches and 0.1895 inches |
| Grip Length | Between 0.240 inches and 0.260 inches |
| Head Diameter | Between 0.337 inches and 0.383 inches |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Material | Iron |
| Material Specification | Ams 5737 assn standard single material response |
| Surface Finish | 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl 3 federal specification single treatment response type 2 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.320 inches and 0.370 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- BACB30LH3-4
- BACB30LH3-5
- BACB30LH3-10
- BACB30LH3-13
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.
- BACB30LR3-4 BAC 0.610 in · Flat countersunk · Iron
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error