National Stock number : 5305-01-309-6540
Machine Screw
| Available Quantity | 627 |
| Available Conditions | NE NS |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 04/28/2026 |
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
0.651in. and 0.781in. ⁓25/32"
Fastener Length
0.734in. and 0.781in. ⁓25/32"
Head Style
hexagon
Head Height
0.552in. ⁓9/16"
Width Between Flats
0.492in. and 0.502in.
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.375in. ⁓3/8"
Thread Quantity Per Inch
24
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
36.0 rockwell c and 40.0 rockwell c
Screw Material
steel comp E4340 or steel comp 8740
Screw Material Document And Classification
MIL-S-5000 mil spec 1st material response or MIL-S-6049 mil spec 2nd material response or ams 6322 assn std 2nd material response
Screw Surface Treatment
cadmium and chromate
Screw Surface Treatment Document And Classification
QQ-P-416 ty 2, cl 2 fed spec single treatment response
Bearing Surface Of Head Surface Finish
63.0 microinches
Shank Surface Finish
32.0 microinches
Thread Surface Finish
32.0 microinches
Thread Series Designator
unjf
Specification/standard Data
80205-NAS1801 professional/industrial association standard
