RS PRO Brass Flanged Flush Threaded Insert M3.5 with 4.8 mm Fixing Hole Diameter and 6.35 mm Depth 278-590

RS PRO 278-590 Brass Flanged Flush Threaded Insert M3.5 is a high-quality expansion insert designed to provide threaded receptacles for screws and bolts in hard plastic and other suitable materials. Manufactured from durable brass, these inserts offer superior corrosion resistance compared to steel variants.

Featuring a knurled outer diameter and expansion slots, this design ensures a secure fit, preventing rotation or loosening caused by vibration and providing consistent self-locking pressure on fixing screws. The flanged and flush finish contributes to both structural integrity and aesthetic appeal during installation.

The insert requires a fixing hole diameter of 4.8 mm, has an outside diameter of 5.06 mm, and a depth of 6.35 mm, suitable for material thicknesses of at least 7.8 mm. Installation is straightforward, achieved through press or hammer-in methods, ideal for drilled or molded holes. This range includes flanged inserts of sizes M3 through M6.

Common applications include plastic housings, casing assemblies, and various industrial or manufacturing components requiring strong, reusable threads in thermoset and other hard plastics. RS PRO provides a trusted range of inserts rigorously tested to industry standards and guaranteed to meet professional engineering requirements.

Constructed from brass providing corrosion resistance and durability. Flanged design improves load distribution. Flush finish for smooth installation aesthetics. Knurled expansion design prevents loosening from vibration.

Suitable for plastic and molded hole installations. Easy press or hammer-in fitting method. Meets RoHS environmental safety standards. Available in multiple thread sizes including M3.5 flange. Explore our comprehensive range of industrial fasteners and Threaded Inserts for reliable mechanical fastening solutions at EnvMart.