405 Pcs SAE Hex Nuts Assortment Kit, #2-56#4-40#6-32#8-32#10-24#10-32#12-24 1/4″
(NOTE: Do not over-tighten your hex nuts.). 304 Stainless Steel Hex Nut: Stainless steel hex nuts are made of high-quality 304 stainless steel and have a long service life. They are rust-proof, corrosion-resistant, and sturdy.