National Stock number : 5305-00-838-8499
Cap Socket Head Screw
| Available Quantity | 2,108 |
| Available Conditions | NS NE |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 01/15/2026 |
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
Cap Socket Head Screw
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.809in. ⁓13/16"
Fastener Length
1.000in. ⁓1/64"
Head Style
flat countersunk
Head Diameter
0.600in. and 0.656in.
Internal Drive Style
hexagon
Nominal Thread Diameter
0.312in. ⁓5/16"
Width Across Flats
0.187in. and 0.189in. ⁓13/64"
Thread Quantity Per Inch
24
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
36.0 rockwell c and 43.0 rockwell c
Minimum Yield Strength
130000 pounds per square inch
Countersink Angle
80.0 degrees and 84.0 degrees
Material
steel
Surface Treatment
cadmium and chromate
Surface Treatment Document And Classification
QQ-P-416 ty 2 cl 3 fed spec all treatment responses
Thread Series Designator
unf
Departure From Cited Designator
as mod by metallic hardness rating
