1Made of 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments 2Square nuts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening 3Four-sided nut can be tightened easily by gripping two sides, and can be a quick gauge to measure the position of the nut 4Work well in tight spaces by using needle nosed pliers, work well in blind spots using pliers or a wrench 5There are 5 different sizes of square nuts that you can choose to fit your purpose