5306-01-291-0137
Find complete technical information, availability, and procurement data for: 5306-01-291-0137
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An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes:undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.
3a thread class, double hexagon w/hole head style, 1.615 inches minimum and 1.635 inches maximum fastener length, 0.740 inches minimum and 0.820 inches maximum thread 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
- 0.740 inches minimum and 0.820 inches maximum
- Fastener Length
- 1.615 inches minimum and 1.635 inches maximum
- Head Style
- double hexagon w/hole
- Head Height
- 0.290 inches minimum and 0.310 inches maximum
- Width Between Flats
- 0.313 inches nominal
- Extended Washer Diameter
- 0.428 inches minimum and 0.448 inches maximum
- Extended Washer Thickness
- 0.060 inches minimum
- Hole Diameter
- 0.060 inches minimum and 0.080 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Hole Quantity
- 4
- Hole Type
- drilled
- Features Provided
- finished head
- Thread Quantity Per Inch
- 28
- Hole Configuration Style
- double hexagon longitudinal hole
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- iron alloy 660 overall
- Material Document And Classification
- ams5731 assn std single material response overall
- Thread Series Designator
- unjf
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