Check the listing for details. M3X5X4 Thread Knurled Threaded Heat Resistant Insert Embedment Nut For 3DPrinter. Color: Gold, Condition: New. Listed at 10.00 USD. M3X5X4 Thread Knurled Threaded Heat Resistant Insert Embedment Nut For 3DPrinterSpecification:1. Product Name: 3D Printer Thread Embedded Nut2. Material: brass3. Quantity: 50/100pcs4. Color: gold5. Size: M3X5X4mm( as photo)Description1. Used on injection moulding for tightly fixing.2. No need to counter bore or countersink the boss hole because the insert has guide pilot.3. All nuts are made of high quality brass, which has high hardness, no deformation, durable and reliable for long use.4. Easy to install: From the moment that the insert has a valve conduit, there is no need to back-drill and counter-sink the hole.5. Can be installed by ultrasonic or heat in tapered bore wire, or molded in during injection.Notes: 1. Please allow tiny error due to manual measurement. 2. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures.