National Stock number : 5305-00-269-4210
Machine Screw
| Available Quantity | 4,617 |
| Available Conditions | NS NE 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
Machine Screw
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.479in. ⁓31/64"
Fastener Length
1.281in. ⁓1-9/32"
Head Style
flat countersunk
Head Diameter
0.569in. and 0.635in.
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.312in. ⁓5/16"
Thread Quantity Per Inch
24
Minimum Tensile Strength
125000 pounds per square inch
Hardness Rating
50.0 rockwell c and 56.0 rockwell c
Countersink Angle
99.0 degrees and 101.0 degrees
Screw Material
steel
Screw Surface Treatment
cadmium
Thread Series Designator
unf
