National Stock number : 5306-01-085-3871
Machine Bolt
| Available Quantity | 643 |
| Available Conditions | NS NE |
| Classification | Bolts - FSC 5306 |
| Schedule B | 7318152000 |
| Stock Check Date | 06/16/2026 |
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 Bolt
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.740in. and 0.820in. ⁓53/64"
Fastener Length
1.490in. and 1.510in. ⁓1-33/64"
Head Style
double hexagon w/hole
Head Height
0.320in. and 0.340in. ⁓11/32"
Width Between Flats
0.304in. and 0.313in.
Extended Washer Diameter
0.428in. and 0.448in.
Extended Washer Thickness
0.060in. and 0.070in.
Hole Diameter
0.070in. ⁓5/64"
Nominal Thread Diameter
0.250in. ⁓1/4"
Grip Length
0.690in. and 0.750in.
Hole Quantity
4
Hole Type
drilled
Features Provided
finished head
Thread Quantity Per Inch
28
Minimum Tensile Strength
125000 pounds per square inch
Hardness Rating
26.0 rockwell c and 32.0 rockwell c
Hole Configuration Style
double hexagon longitudinal hole
Surface Finish
63.0 microinches grip
Material
steel comp 8740
Material Document And Classification
AMS6322 assn std single material response
Surface Treatment
oxide
Surface Treatment Document And Classification
AMS2485 assn std single treatment response
Thread Series Designator
unf
