5306-01-042-4389
Find complete technical information, availability, and procurement data for: 5306-01-042-4389
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An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.
3a thread class, 0.678 inches minimum and 0.781 inches maximum thread length, right-hand thread direction, 0.750 inches minimum and 0.812 inches maximum fastener length, crowned hexagon 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.678 inches minimum and 0.781 inches maximum
- Fastener Length
- 0.750 inches minimum and 0.812 inches maximum
- Head Style
- crowned hexagon
- Head Height
- 0.131 inches minimum and 0.151 inches maximum
- Width Between Flats
- 0.428 inches minimum and 0.440 inches maximum
- Hole Diameter
- 0.035 inches nominal
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.031 inches minimum and 0.062 inches maximum
- Hole Quantity
- 1
- Hole Type
- drilled
- Features Provided
- finished head
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 125000 pounds per square inch
- Hardness Rating
- 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
- Hole Configuration Style
- hexagon longitudinal hole
- Special Features
- slot in @thread end
- Material
- steel comp 8740 or steel comp 4140 or steel comp 8735 or steel comp 4037 or steel comp 4130 overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,type 2,class 2 fed spec single treatment response overall
- Thread Series Designator
- unf
- Specification/Standard Data
- 80205-nas428 professional/industrial association standard
Related Parts
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| Part Number | Name |
|---|---|
| NAS428HK4A6 | Machine Bolt |
| NAS428KH4-6 | Machine Bolt |
FAQs
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