The brass Series 18 reverse expansion insert is intended for applications where the bolt enters the insert from the headless, rather than the headed, end.
The insert's head provides a high level of pull-through resistance, and its diamond knurl offers bi-directional torque resistance for bolt installation.
This reverse expansion insert does not require any specialized insertion tools and is intended to be cold-pressed into plastic holes. It can be installed by hand in a factory setting or in the field. With its reverse orientation and head, it promises high levels of joint strength.
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