5306-00-274-2563
Find complete technical information, availability, and procurement data for: 5306-00-274-2563
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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.
right-hand thread direction, 2a thread class, 0.646 inches minimum and 0.656 inches maximum fastener length, square extended washer head style, 0.563 inches nominal thread length
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
- 0.563 inches nominal
- Fastener Length
- 0.646 inches minimum and 0.656 inches maximum
- Head Style
- square extended washer
- Head Height
- 0.375 inches minimum and 0.385 inches maximum
- Width Between Flats
- 0.218 inches nominal
- Extended Washer Diameter
- 0.433 inches minimum and 0.443 inches maximum
- Extended Washer Thickness
- 0.130 inches nominal
- Hole Diameter
- 0.062 inches nominal
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.083 inches minimum and 0.093 inches maximum
- Hole Quantity
- 4
- Hole Type
- drilled
- Features Provided
- finished head
- Thread Quantity Per Inch
- 20
- Hardness Rating
- 20.0 rockwell c minimum and 26.0 rockwell c maximum overall
- Hole Configuration Style
- square longitudinal hole
- Special Features
- unthreaded portion of shank 0.243 in. by 0.250 in. dia
- Material
- steel overall
- Material Document And Classification
- mil-s-890 mil spec single material response overall
- Thread Series Designator
- unc
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FAQs
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