5305-00-957-8378
Find complete technical information, availability, and procurement data for: 5305-00-957-8378
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
3a thread class, 1.343 inches nominal fastener length, 0.531 inches minimum thread length, right-hand thread direction, flat countersunk undercut 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
- 0.531 inches minimum
- Fastener Length
- 1.343 inches nominal
- Head Style
- flat countersunk undercut
- Head Diameter
- 0.629 inches minimum and 0.636 inches maximum
- Head Height
- 0.088 inches minimum and 0.090 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.312 inches
- Thread Quantity Per Inch
- 24
- Minimum Tensile Strength
- 180000 pounds per square inch
- Countersink Angle
- 100.0 degrees nominal
- Screw Material
- steel comp 4140
- Screw Material Document And Classification
- mil-s-5626 mil spec single material response
- Screw Surface Treatment
- cadmium
- Screw Surface Treatment Document And Classification
- nas 672 assn std single treatment response
- Thread Series Designator
- unf
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