screws › hexagon head cap screws
B1821AH038F138N
Screw
Description
Fastener Length: 1-3/8", Thread: 3/8-24, Thread Length: 1-"
Specifications
| Fastener Length | 1.380 |
|---|---|
| Head Height | 0.226 inches minimum and 0.268 inches maximum |
| Head Style | Hexagon Head |
| Length | 1 3/8 |
| Material | Steel |
| Material Specification | Sae j429, gr8 assn std single material response |
| Surface Treatment | Zinc or chromate |
| Surface Treatment Specification | Astm b633 assn std single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.380 |
| Thread Direction | Right-hand |
| Thread Length | 1.000 |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 3/8 |
| Width Between Flats | 0.544 inches minimum and 0.562 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- B1821AH038F100N
- B1821AH038F125N
- B1821AH038F138N
Cross-reference
No interchangeable or dimensionally similar parts are on record for B1821AH038F138N. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error