Description This heat set insertis made of solid material, which can withstand long-lasting use. Features the copper material, which has high durability, not easy to deform. Fine workmanSHLP, ensures practicality. Features -Color:Golden -Material:Copper -Size:0.80X0.80X0.80cm/0.31X0.31X0.31in Inner diameter: 1/4 inch-20 - With female thread design, these heat set inserts are easy to install and use. - Made of sturdy copper material, these nut inserts are durable and reliable. - The internal threaded design can ensure a tight and secure in use. - Suitable for a wide range of applications, these Embedment nuts are versatile and practical. - Adoption of simple and convenient design, this product also can be used for a long time. Packing list: 20 x nuts