bolts › close tolerance bolts
NAS1221R4E6
Bolt
Description
Fastener Length: 3/8", Thread: 1/2
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Fastener Length | 0.375 |
| Head Diameter | 0.461 |
| Head Style | Flat top elevator |
| Internal Drive Style | Torque set |
| Length | 3/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 5790 pounds per square inch |
| Part Name Assigned By Controlling Agency | Bolt 100" flush head self locking optional |
| Screw Material | Steel |
| Screw Material Specification | Ms14191 mil spec all material responses |
| Special Features | Style is offset cruciform i/a/w ms14191 |
| Thread Class | 2500-28 unjf-3a |
| Thread Diameter | 0.507 |
| Thread Direction | Right-hand |
| Thread Series Designator | UNJF |
| Thread Size | 1/2 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1221R4E3
- NAS1221R4E4
- NAS1221R4E5
- NAS1221R4E6
- NAS1221R4E23
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1221R4E6. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error