PVC Hex Nut, #4-40 (Pack of 50) Reviews
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PVC Hex Nut, #4-40 (Pack of 50) Feature
- Hex Nuts are appropriate for use in low-strength assemblies
- PVC is suitable where insulating properties are important and/or where exposure to water is expected
- Drive system is a hexagon-shaped head
- Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads
- Ensure a lasting hold for any project
Most often used on machine screws and threaded rod, these general purpose nuts are for low-strength assemblies. Hex Nuts have flat tops with chamfered corners; bottoms may be flat or chamfered. Hex drive systems are driven with a wrench.
Polyvinylchloride, or PVC, exhibits little or no water absorption, absorbing 0.05% of its weight after 24 hours of exposure to water. Because it is chlorinated, PVC also possesses natural flame retardant qualities. PVC has one of the highest dielectric strengths of plastics, at 1413 volts per millimeter, making it an excellent insulator. PVC possesses average to above average strength compared to other plastics, with a tensile strength of 7450 psi (pounds per square inch) and an impact strength of 5 force pounds (Izod Impact Scale). The primary drawback of PVC is its low melting point temperature of 140 degrees Fahrenheit.
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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Apr 16, 2011 02:31:03
