Our 4140 quick turn around couplings. Rather than 6 weeks, we can turn these around in typically 3-5 days. These are pre-heat treated and ready to thread!

Crowder Supply stocks the full line of drill steel adaptors and pair it with the matching ext rods. The drill steel adapters guide walks through choosing the right one. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.