5305-00-078-3686
Find complete technical information, availability, and procurement data for: 5305-00-078-3686
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An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.
0.531 inches minimum thread length, right-hand thread direction, 1.093 inches nominal fastener length, 3a thread class, 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
- 0.531 inches minimum
- Fastener Length
- 1.093 inches nominal
- Head Style
- flat countersunk
- Head Diameter
- 0.491 inches minimum and 0.507 inches maximum
- Locking Feature
- patch or strip threads
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 125000 pounds per square inch
- Hardness Rating
- 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Material
- steel overall
- Surface Treatment
- cadmium and chromate overall
- Thread Series Designator
- unf
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 |
|---|---|
| NK509-416-17 | Socket Head Cap Screw |
FAQs
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