Brass Machine Screw, Pan Head, Phillips Drive, #4-40, 3/16" Length (Pack of 100) Reviews
Brass Machine Screw, Pan Head, Phillips Drive, #4-40, 3/16" Length (Pack of 100) Feature
- Machine Screws are often used with nuts or driven into tapped holes
- Brass is suitable where corrosion resistance is a primary consideration
- Pan head allows for higher tightening torques
- Phillips drive is designed to cam out under too much torque
- Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads
Brass is rust proof, corrosion resistant and polishes to a rich, golden color. Brass is easily soldered and brazed and accepts plating readily. The typical composition is 70% Copper and 30% Zinc. Strength increases with a higher percentage of Zinc.
Pan head fasteners have a low, large cylindrical head with a high rounded top edge for higher tightening torques - these fasteners are often recommended to replace older head styles such as round, binding, or truss-head where possible. The Phillips drive style was originally designed so that the driver would slip out under extreme torque, preventing over-tightening and damage to the fastener or the material.
A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Coarse threading also allows for thicker coatings and platings.
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