Keep updated with fastener technology 30 April 2018

Harrison Silverdale, a supplier of threaded inserts and specialised fasteners to the plastic moulding industry, is able to offer customers an extensive range, engineering expertise and knowledge of the fastener market – making it best placed to provide a cost-effective supply solution for all fastener requirements.

Harrison Silverdale’s Press-In Type FL range of inserts are designed for press fitting into thermoplastic. The combination of knurls and ribs on the body provide high torque and pull out performance. The inserts should be fitted with a squeezing action rather than a blow for optimum performance.

Also available are Press-In Type DMR inserts, designed to provide strong reusable threads in thermoset and other hard plastics. On installation, the insert collapses as it is pushed into the receiving hole. Insertion of the screw expands the sharp diamond points of the knurl into the surface of the hole and penetrates the plastic. This provides a high resistance to torque and pull out loads. The DMR has a slot through the head. The screw entering the insert from the opposite side to the head, with the head therefore gives additional resistance to pull-through loads.

The Mould-In Type HXB HXT Moldcerts are suitable for moulding into all types of plastic material during the moulding cycle. They are available with blind or through threads (HXB or HXT). The hexagon body gives very high torque resistance even in soft materials.

Another insert, the Mould-In Type FT, is designed for over moulding into thermoplastic or thermoset materials. The unique design of three herringbone knurl bands, combined with the included recesses, offer excellent rotational and pull out performance. The open end has a counter bore, which locates onto a shouldered pin within the tool to eliminate plastic ingress into the threads.

As a major distributor of standard fasteners Harrison Silverdale has also joined BIAFD (the British & Irish Association of Fastener Distributors).

Claire Aldridge Deputy Editor t: +44 (0) 1727 814 450

Having joined the magazine in 2012, Claire developed her knowledge of the industry through the numerous company visits, exhibitions and conferences she attended both in the UK and abroad.

Responsible for social media and the online platforms, Claire prides herself on keeping readers well informed and up to date with the latest industry news.