screws › hexagon head cap screws
B1821BH038C275D
Screw
Description
Fastener Length: 2-3/4", Hole Diameter: 1/16", Thread: 3/8-16, Thread Length: 1-3/16"
Specifications
| Fastener Length | 2.656 inches minimum and 2.750 inches maximum |
|---|---|
| Hardness Rating | 33.0 rockwell c minimum and 39.0 rockwell c maximum |
| Head Height | 0.226 inches minimum and 0.243 inches maximum |
| Head Style | Hexagon Head |
| Hole Configuration Style | Hexagon longitudinal hole |
| Hole Diameter | 0.065 |
| Hole Quantity | 1 |
| Hole Type | Drilled |
| Length | 2 3/4 |
| Material | Steel |
| Material Specification | Saej429 grade 8 assn std single material response or astm a354 grade bd 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 Finish | 63.0 microinches threads |
| Surface Treatment | Zinc and chromate |
| Surface Treatment Specification | Astm b633 ty 2 sc 3 assn std single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.375 |
| Thread Direction | Right-hand |
| Thread Length | 1.188 inches minimum |
| Thread Qty | 16 |
| Thread Qty Per Inch (tpi) | 16 |
| Thread Series Designator | UNC |
| Thread Size | 3/8 |
| Width Between Flats | 0.551 inches minimum and 0.563 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for B1821BH038C275D. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error