4-40 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc And Bake 1/4-20-0 They are fully threaded

They are fully threaded

This 1/2-13 x 8 1/2 Hex Cap Screw is made of steel and has a Grade 8 rating

It features an acoustical eye at the head of the screw

These nuts are designed to be used with bolts or screws of the same size and thread pitch

It has a yellow zinc finish for corrosion resistance

4-40 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc And Bake 1/4-20-0 They are fully threaded4 40 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78 90 Zinc And Bake are designed to provide a secure and reliable connection in a variety of applications. These nuts are made from high quality steel and are case hardened for added strength and durability. The serrated flange helps to prevent the nut from loosening due to vibration or other forces. The zinc and bake finish provides corrosion resistance and a clean, professional appearance. These