Uxcell 1/8IP Screw Thread Hex Fasteners Lamp Pipe Threaded Lock Nuts with Washers 150 Pack

What is this? These hex nuts are common hardware to screw into the threaded lamp pipe. And the standard washer is for spreading the load of fastened fittings surface. Commonly used on securing thread pipes for assembling replacing repairing chandelier ceiling light or making other DIY lamp projects. Are there any advantages of the product? Made of iron material zinc coated finished surface with good strength and rust resistance. Washers with teeth can grip the surface firmly when you turning the nuts. How to use it? Easy to use put the washers through the threaded pipe firstly then screw the nuts into the threaded pipe no need for tools. What should I notice? Please check the thread size before buying.