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MS18212-21
Military Standard Screw
Description
Fastener Length: 1-", Thread: 4-40, Thread Length: 7/8"
Specifications
| Fastener Length | 1.000 |
|---|---|
| Head Diameter | 0.205 inches minimum and 0.219 inches maximum |
| Head Height | 0.058 inches minimum and 0.068 inches maximum |
| Head Style | Pan no. 2 |
| Internal Drive Style | Slot |
| Screw Material | Plastic polyhexamethylene amide |
| Screw Material Specification | Mil-m-20693,comp a,type i,color natural per ms18212 mil spec single material response |
| Thread Class | 2a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.937 |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| Thread Size | 4 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS18212-21. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error