Spirol Industries now has available a new family of brass inserts intended to be placed in a plastic mould prior to plastic injection. They can be used in applications where torque and pull-out/through resistance are required. The new hexagonal moulded-in insert family has a hexagonal head on each end and a large centre undercut. This design provides a high level of bi-directional torque resistance and high tensile strength. Two moulded-in inserts are available, Spirol Series 40 is a through hole moulded-in insert and Spirol Series 44 a blind-end moulded-in insert.
For more information on this company click here
To add your company click here
Poll: Should the UK’s railways be renationalised?
I'd hate to be disingenuous so I've replotted the data with the first trendline from 1946 to 1977 and the second using your chosen dates 1983 to 2018....