DescriptionAre you looking for a professional, yet affordable knurled nuts? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional knurled nuts must meet your needs. It is one of the best choices for you.Features- Color: Brass. - Material: Copper. - Size: About 0.35X0.35X0.30cm/0.14X0.14X0.12inch. - The knurled nuts are made of premium material, high hardness, durable and wear resistance. - High temperature resistant, flame retardant. - These knurl thread insert nuts can be widely used on the injection moulding for tightly fixing. - Can be easily driven into many different types of material, including steel, plastic and fibreglass. - Great installation tools for large rivet nuts, to make work easier and faster.