5305-01-049-4057
Find complete technical information, availability, and procurement data for: 5305-01-049-4057
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A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
flat countersunk head style, 1.499 inches minimum and 1.529 inches maximum fastener length, right-hand thread direction, 0.364 inches minimum and 0.414 inches maximum thread length, 3a thread class
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
- 0.364 inches minimum and 0.414 inches maximum
- Fastener Length
- 1.499 inches minimum and 1.529 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.455 inches minimum and 0.510 inches maximum
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.115 inches minimum and 1.135 inches maximum
- Thread Quantity Per Inch
- 28
- Countersink Angle
- 100.0 degrees nominal
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- iron alloy 660 overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,type 2,class 3 fed spec single treatment response overall
- Thread Series Designator
- unjf
- Specification/Standard Data
- 81205-bacs12lh professional/industrial association standard
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| BACB30LH4-18 | Close Tolerance Screw |
FAQs
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