screws › machine screws
MS9555-06
Military Standard Machine Screw
Description
Fastener Length: 1/2", Thread: 8-36, Thread Length: 27/64", MS9555 series screw
Specifications
| Bearing Surface Of Head Surface Finish | 32.0 microinches |
|---|---|
| End Application | T700-ge-700 (uh-60 & eh-60a) eh-60a; hh-60l medivac; engine electronic countermeasures tf34-ge-100 (a-10); ah-64-d long bow; helicopter aircraft missile f112-wr-100 (advanced cruise missile); engine ah-1w; engine advance attack j69-t-25 (t-37b); helicopter aircraft t703-ad-700a/b/c (oh-58d); engine t700-ge-701c (uh-60/mh-60k/ah-64); engine w/s: engine |
| Extended Washer Diameter | Between 0.302 inches and 0.322 inches |
| Extended Washer Thickness | 0.030 |
| Fastener Length | Between 0.490 inches and 0.510 inches |
| Head Height | Between 0.220 inches and 0.240 inches |
| Head Style | Double hexagon w/ hole |
| Length | 1/2 |
| Material | Iron |
| Special Features | Without internal drive |
| Thread Class | 3a |
| Thread Diameter | 0.164 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.408 inches and 0.448 inches |
| Thread Qty | 36 |
| Thread Qty Per Inch (tpi) | 36 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 8 |
| Thread Surface Finish | 32.0 microinches |
| Width Between Flats | 0.219 |
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 MS9555-06. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error