Within hours after tightening all the nuts on something, suddenly, some or all of the nuts have worked loose or fall off.
Nylon Lock Nuts are designed to apply pressure to the upper threads to make it more difficult to back off from vibration or movement once tightened. A nylon ring or collar slightly smaller than the major diameter of the machine screw threads applies pressure by expanding, rather than cutting, conforming threads into the nylon. A question that is often asked is: Can lock nuts be reused? The answer is yes, no, and maybe. Yes, in most applications, if the nylon is not damaged during installation. They can be used repeatedly. Maybe, in the aviation industry, there are limited if the prevailing torque is within certain specifications on a preloaded fastener. The USAF says No, they must be replaced after removal.
Machine screws are uniform in diameter the entire length of the shaft as opposed to Traditional or Production Wood Screw, which have a pointed tip.
Machine screws are a combination of a small bolt and a screw, usually fastening metal to metal or plastic. Common uses in the home or shop is to fasten electrical components, such as attaching a light switch or outlet to an electrical box. In that application, machine screws are turned into a hole in which matching threads are cut, or "tapped. "If the hole is not tapped, the machine screw will require a nut. They are also used to fasten cover plates to machine components, appliances and more.
Zinc Plating: The silver appearance of Clear Zinc has been around for many years and remains very popular. It also provides moderate rust protection. Since this is true electroplating, the zinc coating is part of the steel's surface and is very durable. Other chemicals can be added to the process and the depth of the coating can be controlled.
Cation: Not recommended in areas where the temperature will exced 250°
| BRAND | McFeely's |
|---|---|
| MATERIAL | Zinc, Clear |
| SIZE (#8, #10 ...) | 1/4 - 20 (Bolts) |
| QUANTITY | SML (1-50) |
| RoHS Compliant? | No |
| SKU | HSL-1420-D |
| Prop 65 |
|
WARNING: This product can expose you to chemicals including Zinc which is known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.
WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.
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