5305-00-271-4681
Find complete technical information, availability, and procurement data for: 5305-00-271-4681
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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.
0.312 inches nominal thread length, flat chamfer head style, right-hand thread direction, 3a thread class, 0.312 inches nominal fastener 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.312 inches nominal
- Fastener Length
- 0.312 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.221 inches minimum and 0.226 inches maximum
- Head Height
- 0.134 inches minimum and 0.138 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.138 inches
- Width Across Flats
- 0.093 inches minimum and 0.094 inches maximum
- Thread Quantity Per Inch
- 32
- Hardness Rating
- 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Minimum Yield Strength
- 140000 pounds per square inch
- Material
- steel comp 4135 or steel comp 4137 or steel comp 8635 or steel comp 8640 overall
- Material Document And Classification
- qq-s-624 fed spec all material responses overall
- Surface Treatment
- zinc overall
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 1 type and 11 style
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