screws › machine screws
MS18211-126F
Military Standard Screw
Description
Fastener Length: 19/32", Thread: 1/4-28, Thread Length: 17/32"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.594 inches minimum and 0.625 inches maximum |
| Head Diameter | 0.442 inches minimum and 0.507 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Slot |
| Length | 5/8 |
| Nondefinitive Specification/Std Data | 1 type and 3s style |
| Screw Material | Plastic polyhexamethylene amide |
| Thread Class | 2a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.523 inches minimum and 0.554 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
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 MS18211-126F. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error