bolts › shoulder bolts
NAS1297-5-43
Shoulder Bolt
Description
Fastener Length: 3-13/64", Thread: 1/4-24, Thread Length: 31/64
Specifications
| Fastener Length | 3.176 inches minimum and 3.216 inches maximum |
|---|---|
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Height | 0.203 inches minimum and 0.235 inches maximum |
| Head Style | Hexagon Head |
| Length | 3 13/64 |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec 1st material response or mil-s-6049 fed spec 2nd material response or mil-s-6050 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6758 mil spec 5th material response or ams 6300 assn std 6th material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Shoulder Diameter | 0.371 inches minimum first shoulder and 0.374 inches maximum first shoulder |
| Shoulder Length | 2.688 inches minimum first shoulder and 2.708 inches maximum first shoulder |
| Shoulder Shape | Round first shoulder |
| Specification Data | 80205-nas1297 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,type 2,class 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.385 inches minimum and 0.486 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.553 inches minimum and 0.565 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1297-5-8
- NAS1297-5-12
- NAS1297-5-13
- NAS1297-5-15
- NAS1297-5-20
- NAS1297-5-43
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1297-5-43. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error