Spirol is pleased to introduce a high performance line of moulded-in inserts for plastics manufactured from aluminium. The robust design of the Series 60 blind-end and Series 61 through-hole Inserts consists of axial grooves to maximise torque resistance, balanced with radial undercuts to achieve high-pull out force. These moulded-in inserts are designed to be placed in the mould cavity prior to plastic injection, and offer exceptional performance due to unrestricted plastic flow into the retention features on the outside diameter of the inserts. These lightweight inserts for plastics are manufactured from 2024 grade aluminium which provides the best combination of strength, corrosion resistance, machineability and cost.