The heat set insert is convenient and practical, with excellent texture, and can serve you for a long time without being easily damaged. The craftsmanship can serve you well without breaking easily. This is a very practical heat set insert. Features -Color:Golden -Material:Copper, copper alloy -Size:17.40X9.80X2.20cm/6.84X3.85X0.86in - The screw thread is accurate, the drawing force is strong, the anti-rust is practical, and the texture is excellent. - Premium heat set nut, no deformation, and . - It is widely used in automotive, electronics, recreational equipment, and etc. - The design is reasonable, the screw teeth are accurate, and the drawing force is strong, which will meet your needs very well. - The appearance is simple, smooth and bright, and it can match your need well, can install it with confidence. Package list: 20 x M4x8x6 nuts 15 x M4x10x6 nuts 15 x M4x5x7 nuts 10 x M5x8x7 nuts 10 x M5x10x7 nuts 30 x M3x6x5 nuts 20 x M3x8x5 nuts 20 x M3x10x5 nuts 30 x M4x4x6 nuts 20 x M4x6x6 nuts 30 x M2x4x3.5 nuts 30 x M2x6x3.5 nuts 30 x M2x8x3.5 nuts 20 x M2x10x3.5 nuts 30 x M3x4x5 nuts