A wing nut is a type of nut with two large metal 'wings', one on each side, so it can be easily tightened and loosened by hand without tools
Nylon is generally lightweight, tough, resistant to corrosion, and have good electrical insulating properties
Nylon is a widely used plastic that has a reputation for great strength and resistance to wear and tear through repeated use
For external use
For hand fixing with metric threaded bolts, where easy or frequent removal is required. Applications include assembling furniture, steel frames, brackets, etc.