National Stock number : 5306-01-173-8034
Internal Wrenching Bolt
| Available Quantity | 1,447 |
| Available Conditions | NE NS |
| Classification | Bolts - FSC 5306 |
| Schedule B | 7318152000 |
| Stock Check Date | 05/01/2026 |
Part-Number.info Quality System
- ISO 9001:2015 + AS9120B Certifed
- Audited supply chain
- Counterfeit Parts Prevention
- 100% Product Inspections
- 7 Year Record Retention
- HAZMAT Certified
- ITAR and DDTC Registered
Product Properties
Description
Internal Wrenching Bolt
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.500in. ⁓1/2"
Fastener Length
1.375in. ⁓1-3/8"
Head Style
fillister
Head Diameter
0.365in. and 0.375in.
Head Height
0.244in. and 0.250in. ⁓1/4"
First Diameter From Head
0.208in. and 0.212in.
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.875in.
Internal Drive Style
hexagon
Nominal Thread Diameter
0.250in. ⁓1/4"
Width Across Flats
0.1875in. and 0.1900in. ⁓13/64"
Thread Quantity Per Inch
28
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
34.0 rockwell c and 38.0 rockwell c
Externally Relieved Body Diameter Quantity
1
Material
steel
Material Document And Classification
FF-S-86 fed spec single material response
Surface Treatment
cadmium
Surface Treatment Document And Classification
QQ-P-416, ty 2, cl 3 fed spec single treatment response
Thread Series Designator
unf
