Grex A150011 - Threaded insert Grex from $2.38 $2.90 Qty. Add to Cart SKU: GRX-A150011 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Genuine Grex replacement part A150011 - Threaded insert. For Grex Models XB, XBi. Chart referance number 23. Tweet Previous Next