Precisely secure fittings, electrical panels, junction boxes, or piping clamps within channels or conduits using Discount Strut Accessories's short spring 1/2-13 Strut Nuts. Strut nuts with springs ensure a more precise, secure fit that won't budge. Easily mount, brace, support, & connect lightweight structural loads such as pipes, electrical & data wire, ventilation, air conditioning, & other mechanical systems. The 316 stainless steel material is ideal for outdoor use, has superior corrosion resistance, & is great for chemical or saltwater applications. Use with W400, W500, W800 & W900. Finish: ST316 Size: 1/2"-13; Thickness=3/8"