National Stock number : 5305-00-139-8178
Machine Screw
| Available Quantity | 2 |
| Available Conditions | NE |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 12/12/2025 |
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
Machine Screw
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.291in. and 0.341in. ⁓11/32"
Fastener Length
1.176in. and 1.206in. ⁓1-7/32"
Head Style
flat countersunk undercut
Head Diameter
0.600in. and 0.666in.
Head Height
0.097in. ⁓7/64"
Internal Drive Style
torque set
Nominal Thread Diameter
0.250in. ⁓1/4"
Thread Quantity Per Inch
28
Minimum Tensile Strength
160000 pounds per square inch
Countersink Angle
100.0 degrees
Screw Material
steel comp 8740
Screw Material Document And Classification
MIL-S-6049 mil spec single material response
Screw Surface Treatment
cadmium and chromate
Screw Surface Treatment Document And Classification
QQ-P-416, type 2, class 2 fed spec single treatment response
Special Features
bearing surface of head grooved to accommodate O-Ring and furnished with polytetrafluoroethylene washer & rubber O-Ring
Thread Series Designator
unjf
