[THREADED]: Thread Size: 1/4-20; Thread Pitch: 20 TPI Coarse Thread UNC; Thread Coverage: Full. [SIZE] - 0.43" (11mm) width across flat, 0.31" (8mm) height.. [MATERIAL]: Made of 304 stainless steel, high hardness, corrosion resistance, oxidation resistance, and durability to use.. [FEATURE]: With a nylon insert, these lock nuts greatly reduce loosening under vibrations and torque after long-term use, and have a good fastening effect.. [APPLICATION]: Great for replacing broken or missing nuts. Widely used for repairing furniture or household appliances, automobile, industries, workshops, engineering machinery, ship, DIY, handicrafts, etc..
