The AR Type LF Ferrule inserts are prefabricated from a special design which distibutes the the bolt stesses into the concrete for greater strength than any previously known device. They are furnished with machine thread to engage AR National Coarse Threaded Rod, and can be supplied with a washer (Type LFW) for easy attachment to the form. Can be supplied in plain, hot dipped galvanised, or plated finish.
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