National Stock number : 5305-01-058-0752
Close Tolerance Screw
| Available Quantity | 6,730 |
| Available Conditions | NE NS |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 12/11/2025 |
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
Close Tolerance Screw
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.378in. and 0.428in. ⁓7/16"
Fastener Length
0.575in. and 0.605in. ⁓39/64"
Head Style
flat countersunk
Head Diameter
0.350in. and 0.399in.
Grip Diameter
0.2490in. and 0.2495in.
Internal Drive Style
offset cruciform (torque set)
Nominal Thread Diameter
0.250in. ⁓1/4"
Grip Length
0.177in. and 0.197in.
Thread Quantity Per Inch
28
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
24.0 rockwell c and 35.0 rockwell c
Countersink Angle
100.0 degrees
Surface Finish
32.0 microinches threads
Material
iron alloy 660
Surface Treatment
passivate
Thread Series Designator
unjf
Specification/standard Data
80205-NAS1581 professional/industrial association standard
