National Stock number : 5305-00-208-8576
Cap Socket Head Screw
| Available Quantity | 13 |
| Available Conditions | NE NS OH SV |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 01/19/2026 |
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
0.212in. and 0.232in. ⁓15/64"
Fastener Length
0.302in. and 0.322in. ⁓21/64"
Head Style
flat chamfer
Head Diameter
0.428in. and 0.440in.
Head Height
0.303in. and 0.323in. ⁓21/64"
Internal Drive Style
hexagon
Nominal Thread Diameter
0.250in. ⁓1/4"
Width Across Flats
0.218in. and 0.220in. ⁓15/64"
Thread Quantity Per Inch
28
Minimum Tensile Strength
155000 pounds per square inch
Hardness Rating
35.0 rockwell c
Surface Finish
40.0 microinches bearing surface of head
Material
steel comp 416se or steel comp 303 or steel comp 303 plus x
Surface Treatment
passivate
Thread Series Designator
unf
