RS PRO Brass Flush Threaded Insert M4 Diameter 5.6 mm Depth 7.95 mm 278-556

RS PRO 278-556 Brass Flush Threaded Insert M4 is engineered for robust fastening applications where reusable and secure threads are essential. Made from high-quality brass material, this insert provides superior corrosion resistance compared to steel and zinc-plated alternatives. Its flush design and knurled outer diameter with expansion slots provide excellent grip within drilled or moulded holes, preventing rotation and loosening under vibration conditions.

This threaded insert is designed for installation into plastic materials or thin metal sheets with a minimum thickness of 10.2 mm and uses an expansion mechanism that locks the insert firmly in place once the screw is inserted. The insert dimensions include a fixing hole diameter of 5.6 mm and an outside diameter of 5.64 mm, with a depth of 7.95 mm, making it suitable for M4 screw threads.

These features make the RS PRO 278-556 insert ideal for use in plastic housings, electronic enclosures, and mechanical assemblies requiring durable thread reinforcement. Installation is straightforward with simple press or hammer-in methods into pre-drilled or moulded holes.

Manufactured from corrosion-resistant brass for long-lasting performance. Flush fixing design with knurled outer diameter for secure grip and anti-rotation properties. Compatible with M4 screws and bolts, with a fixing hole diameter of 5.6 mm.

Insertion depth of 7.95 mm suitable for a minimum material thickness of 10.2 mm. Compression expansion type insert providing self-locking action to prevent loosening under vibration. RoHS compliant ensuring environmental safety.

Ideal for use in thermoplastic materials, plastic casings, and metal panel fastenings.

RS PRO offers a comprehensive range of threaded inserts suited for diverse industrial applications, delivering reliable and quality fastening solutions. Browse more RS PRO products in the Threaded Inserts category at EnvMart.