National Stock number : 5305-00-437-5278
Close Tolerance Screw
| Available Quantity | 26 |
| Available Conditions | NS NE |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 03/31/2026 |
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
Close Tolerance Screw
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.282in. and 0.333in. ⁓11/32"
Fastener Length
1.168in. and 1.188in. ⁓1-13/64"
Head Style
flat countersunk
Head Diameter
0.449in. and 0.507in.
Locking Feature
detent ball grip
Grip Diameter
0.2483in. and 0.2492in.
Shank Unthreaded Hole Diameter
0.076in. first hole and 0.086in. first hole
Internal Drive Style
HIGH-Torque
Nominal Thread Diameter
0.250in. ⁓1/4"
Grip Length
0.750in. and 0.766in.
Thread Quantity Per Inch
28
Minimum Tensile Strength
4680 pounds per square inch
Hardness Rating
36.0 rockwell c and 41.0 rockwell c
Countersink Angle
99.0 degrees and 101.0 degrees
Distance From Head Largest Bearing Surface To Shank Hole Center
0.840in. first hole and 0.866in. first hole
Surface Finish
63.0 microinches grip
Material
steel comp E4340 or steel comp 4140 or steel comp 8740 or steel comp 4130 or steel comp 6150
Surface Treatment
cadmium and chromate
Surface Treatment Document And Classification
QQ-P-416 ty 2 cl 2 fed spec single treatment response
Thread Series Designator
unjf
