uxcell Knurled Insert Nuts, 50Pcs M2.5 x 4mm(L) x 3.5mm(OD) Female Thread Brass Embedment Nuts

• [SIZE] - M2.5x0.45mm thread size, 0.16" (4mm) long, 0.138" (3.5mm) outer diameter
• [MATERIAL] - Made of brass, rust resistance, good thermal conductivity and heat resistance, can ensure long time using.
• [FEATURE] - It can be installed into a plastic matrix by ultrasound or heat during the injection molding process.
• [ADVANTAGE] - No need to counterbore or countersink the hole since the insert has guide.
• [Application] - Can be widely used in 3D printing injection molding to achieve tight fixation.

Descriptions: 1. Made of brass material, high hardness and durable. Provides good mechanical properties with increased corrosion and heat resistance 2. The knurled insert nut has a guide, so no countersink is required. The surface is smooth, firm and even, and easy to install. 3. It can be installed into a plastic matrix by ultrasound or heat during the injection molding process. 4. Can be widely used in 3D printing injection molding to achieve tight fixation. 5. Because the outer diameter of the insert is embossed, it forms certain friction and bites force with the brass insert after molding, which can be fixed on the inside and will not fall off. Has a certain torsion and tension. Specification: Material: Brass Thread Size: M2.5x0.45mm Total Length: 4mm / 0.16" Outer Diameter（+0.5/-0mm）: 3.5mm / 0.138" Package Content: 50 x Knurl Thread Inserts Nuts