5305-01-309-4782
Find complete technical information, availability, and procurement data for: 5305-01-309-4782
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An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.
3.955 inches nominal thread length, 2a thread class, right-hand thread direction, 4.180 inches nominal fastener length, flat chamfer 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 3.955 inches nominal
- Fastener Length
- 4.180 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.419 inches minimum and 0.438 inches maximum
- Head Height
- 0.213 inches minimum and 0.219 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.250 inches
- Width Across Flats
- 0.156 inches nominal
- Thread Quantity Per Inch
- 28
- Color
- black overall
- Material
- steel overall
- Surface Treatment
- oxide overall
- Surface Treatment Document And Classification
- ams 2485 assn std single treatment response or mil-c-13924 mil spec single treatment response overall
- Thread Series Designator
- unf
Related Parts
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| Part Number | Name |
|---|---|
| 1419M20P10 | Socket Head Cap Screw |
FAQs
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