5305-00-685-7838
Find complete technical information, availability, and procurement data for: 5305-00-685-7838
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A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.
flat chamfer head style, 0.438 inches minimum thread length, 3a thread class, 0.438 inches nominal fastener length, right-hand thread direction
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
- 0.438 inches minimum
- Fastener Length
- 0.438 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.312 inches nominal
- Head Height
- 0.188 inches nominal
- Hole Diameter
- 0.047 inches nominal
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.190 inches
- Width Across Flats
- 0.156 inches nominal
- Hole Quantity
- 6
- Hole Type
- drilled
- Thread Quantity Per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Hole Configuration Style
- round internal hexagon
- Material
- steel overall
- Surface Treatment
- cadmium overall
- Thread Series Designator
- unc
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-052-0637 | No Name Available | 03/01/1984 |
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 |
|---|---|
| 0641-1024-7 | Socket Head Cap Screw |
FAQs
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