National Stock number : 5305-00-050-4271
Cap Socket Head Screw
| Available Quantity | 20,387 |
| Available Conditions | NS NE SV |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 03/26/2026 |
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
0.325in. and 0.375in. ⁓3/8"
Fastener Length
0.375in. ⁓3/8"
Head Style
flat countersunk
Head Diameter
0.218in. and 0.255in.
Internal Drive Style
hexagon
Nominal Thread Diameter
0.112in. (UTS #4)
Width Across Flats
0.062in. ⁓1/16"
Thread Quantity Per Inch
40
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
Material Document And Classification
66 fed std single material response
Surface Treatment
cadmium and chromate
Surface Treatment Document And Classification
QQ-P-416, type 2 class 3 fed spec single treatment response
Thread Series Designator
unc
