screws › machine screws
3M50-4-8
Screw
Description
Fastener Length: 63/64", Thread: 1/4-28, Thread Length: 1/2"
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Fastener Length | 0.952 inches minimum and 0.999 inches maximum |
| Head Diameter | 0.502 inches minimum and 0.507 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | High-torque |
| Length | 63/64 |
| Material | Steel |
| Material Specification | 3-52,fscm 76301 mfr ref single material response |
| Shoulder Diameter | 0.264 inches minimum first shoulder and 0.265 inches maximum first shoulder |
| Shoulder Length | 0.389 inches minimum first shoulder and 0.411 inches maximum first shoulder |
| Shoulder Shape | Round first shoulder |
| Special Features | Furnished with 1 o-ring |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | 3-52,fscm 76301 mfr ref single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.442 inches minimum and 0.509 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for 3M50-4-8. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error