Nylon Machine Screw, Fillister Head, Phillips Drive, 1/4"-28, 3/16" Length (Pack of 100) Reviews
Nylon Machine Screw, Fillister Head, Phillips Drive, 1/4"-28, 3/16" Length (Pack of 100) Feature
- Machine Screws are often used with nuts or driven into tapped holes
- Nylon 6/6 is suitable where non-conductivity, corrosion resistance, and cost are important considerations
- Fillister head for high torque and good hold-down strength
- Phillips drive is designed to cam out under too much torque
- Fine threads tap better into harder materials and thin walls, and are stronger in tension than coarse threads
Nylon 6/6 is a general purpose thermoplastic with outstanding resistance to organic chemicals, acids and alkalis. Nylon wears well against other surfaces; it is readily machinable and may be milled, turned and cut with conventional machine tools. It does exhibit some dimensional swelling in wet applications which should be taken into account with its use. Tensile strength of this material is 12,000 psi (pounds per square inch).
Fillister head fasteners are considered an improvement over round head equivalents - the smaller head creates more downward pressure for a given torque level and the thicker head plus deeper drive slot allows higher torque levels to be generated. 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. Fine threads are preferable when working with harder materials or when threading into a thin material. They are also stronger in tension than coarse threads, and generally provide higher shear strengths.
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Mar 11, 2011 06:47:04
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