screws › machine screws
642AS7549-2
Screw
Description
Fastener Length: 5/16", Thread: 6-32, Thread Length: 7/32"
Specifications
| Countersink Angle | 82.0 degrees |
|---|---|
| Fastener Length | 0.281 inches minimum and 0.312 inches maximum |
| Hardness Rating | 36.0 rockwell c minimum and 43.0 rockwell c maximum |
| Head Diameter | 0.244 inches minimum and 0.279 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Slot |
| Length | 5/16 |
| Locking Feature | Strip threads |
| Material | Plastic |
| Material Specification | Mil-s-6758 mil spec single material response fastener |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty 2 cl 1 fed spec single treatment response fastener |
| Thread Class | 2a |
| Thread Diameter | 0.138 |
| Thread Direction | Right-hand |
| Thread Length | 0.136 inches minimum and 0.229 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNC |
| Thread Size | 6 |
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.
- AN505B6-5 AN #6-32 · 5/16 in · Flat countersunk
- MS51959-27B MS #6-32 · 5/16 in · Flat countersunk · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error