10-32 UNJF-3A Dimensions: Understanding the Specifications
The 10-32 UNJF-3A is a type of fastener that belongs to the UNJ (Unified National Joint) thread series. It is widely used in various industries, including aerospace, automotive, and construction. In this article, we will delve into the dimensions of the 10-32 UNJF-3A fastener and explore its specifications.
Thread Dimensions
The 10-32 UNJF-3A has a major diameter of 0.190 inches (4.83 mm) and a pitch of 32 threads per inch (TPI). The thread length is typically 0.50 inches (12.7 mm) to 1.50 inches (38.1 mm). The thread series is designated as UNJF-3A, which indicates that it has a unified thread form with a Class 3A tolerance.
Hex Dimensions
The 10-32 UNJF-3A fastener has a hexagonal socket with a nominal size of 3/16 inches (4.76 mm). The width across flats is 0.312 inches (7.92 mm), and the width across corners is 0.344 inches (8.73 mm).
Head Dimensions
The head of the 10-32 UNJF-3A fastener is typically a pan head or a hex head with a diameter of 0.312 inches (7.92 mm). The head height is usually 0.062 inches (1.57 mm) to 0.125 inches (3.18 mm).
Material and Finish
The 10-32 UNJF-3A fastener can be made from various materials, including stainless steel, alloy steel, and titanium. The finish can vary depending on the application, but common finishes include zinc plating, cadmium plating, and passivation.
Tightening Torque
The tightening torque for the 10-32 UNJF-3A fastener is typically between 10 inch-pounds (1.13 Nm) and 20 inch-pounds (2.26 Nm). However, the exact torque value may vary depending on the specific application and the material of the fastener.
Conclusion
In conclusion, the 10-32 UNJF-3A fastener is a widely used component in various industries. Understanding its dimensions, thread specifications, and material properties is essential for ensuring proper assembly and reliability. By following the specifications outlined in this article, engineers and designers can design and manufacture products that meet the required standards and performance criteria.
