Shop Bay Supply's premium selection of Tanged Screw-Locking Recoil Inserts. The last thing you need when working on an intense job is having your bolts come loose under pressure. That's where Tanged Screw-Locking inserts can help. These unique inserts feature an internal locking thread with chords that flex to keep bolts in place during rough impacts or vibrations. They can be used with highly-durable metals such as alloy steel, titanium and cast iron while still maintaining their structural integrity. And, because they were made by Recoil, these inserts are designed to last for years to come. Order a set of Tanged Screw-Locking Recoil Inserts from Bay Supply now.