National Stock number : 5305-00-410-0256
Machine Screw
| Available Quantity | 128 |
| Available Conditions | NS |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 05/11/2026 |
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
0.345in. and 0.420in. ⁓27/64"
Fastener Length
0.485in. and 0.530in. ⁓17/32"
Head Style
watertight
Head Diameter
0.555in. and 0.580in.
Head Height
0.145in. and 0.160in. ⁓11/64"
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.250in. ⁓1/4"
Thread Quantity Per Inch
28
Screw Material
steel comp 431
Screw Material Document And Classification
aisi assn std single material response
Screw Surface Treatment
passivate
Special Features
furnished with one rubber O-Ring and one polytetrafluoroethylene washer
Thread Series Designator
unf
