S963A4-12
View detailed technical data, stock status, and sourcing information for: S963A4-12
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An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.
1.205 inches nominal fastener length, 0.455 inches minimum thread length, 3a thread class, right-hand thread direction, flat countersunk head style
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.455 inches minimum
- Fastener Length
- 1.205 inches nominal
- Head Style
- flat countersunk
- Head Diameter
- 0.502 inches nominal
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.250 inches
- Width Across Flats
- 0.157 inches nominal
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Countersink Angle
- 100.0 degrees nominal
- Material
- steel overall
- Surface Treatment
- cadmium overall
- Thread Series Designator
- unf
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5306-00-973-0131 | No Name Available | 03/11/1968 |
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| S963A4-12 | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-558-7677?
Does the NSN 5305-00-558-7677 have a Schedule B code assigned?
Does NSN 5305-00-558-7677 require demilitarization?
Does NSN 5305-00-558-7677 contain precious materials?
Does NSN 5305-00-558-7677 contain hazardous materials?
When the NSN 5305-00-558-7677 was assigned to the Federal Catalog?
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Pricing
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