National Stock number : 5305-00-914-4173
Shoulder Screw
| Available Quantity | 431 |
| Available Conditions | NS NE |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 11/14/2025 |
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
Shoulder Screw
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.480in. and 0.500in. ⁓1/2"
Fastener Length
2.985in. and 2.995in.
Head Style
flat chamfer
Head Diameter
0.543in. and 0.562in.
Head Height
0.244in. and 0.250in. ⁓1/4"
Shoulder Diameter
0.371in. first shoulder and 0.373in. first shoulder
Shoulder Length
2.495in. first shoulder and 2.505in. first shoulder
Internal Drive Style
hexagon
Nominal Thread Diameter
0.312in. ⁓5/16"
Width Across Flats
0.188in. ⁓13/64"
Thread Quantity Per Inch
18
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
32.0 rockwell c and 43.0 rockwell c
Shoulder Shape
round first shoulder
Material
steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740
Surface Treatment
cadmium and chromate
Surface Treatment Document And Classification
QQ-P-416 ty 2 cl 3 fed spec single treatment response
Thread Series Designator
unc
