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: Golden. - Material: Copper. - Size: 0.80X0.50X0.50cm/0.31X0.20X0.20 inch. - Made of premium brass, which has high hardness, no deformation, durable and reliable for a long time use. - These brass threaded insert embedded nuts can be installed by heat into thread tapered hole or molded in during injection. The insert has a guide so there is no need for a counter bore or countersink.- These knurl thread insert nuts can be widely used on the injection moulding for tightly fixing. - Can be installed by ultrasonic or heat into thread tapered hole, or molded in during injection. - It is manufactured with professional technology to ensure the of the product and can work for a long time.