screws › hexagon head cap screws
B1821BH031F400N
Screw
Description
Fastener Length: 3-63/64", Thread: 1/4-24, Thread Length: 0-63/64
Specifications
| Fastener Length | 3.906 inches minimum and 4.000 inches maximum |
|---|---|
| Features Provided | Finished head |
| Hardness Rating | 32.0 rockwell c minimum and 38.0 rockwell c maximum |
| Head Height | 0.195 inches minimum and 0.211 inches maximum |
| Head Style | Hexagon Head |
| Length | 3 63/64 |
| Material | Steel |
| Material Specification | Saej429grade8 assn std single material response |
| Min. Tensile Strength (psi) | 150000 pounds per square inch |
| Nondefinitive Specification/Std Data | 2 type and 10p style and 8 grade |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 2 fed spec single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.875 inches minimum and 1.062 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
| Width Between Flats | 0.489 inches minimum and 0.500 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- B1821BH031F063N
- B1821BH031F088N
- B1821BH031F400N
Cross-reference
No interchangeable or dimensionally similar parts are on record for B1821BH031F400N. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error