Tangless Helical Insert, Free-Running, 1/4"-28 Thrd Sz, 18-8 Stainless Steel, 100 PK, Stanley Engineered Fastening, Mfr#: AT1191-4C500$31.49+
Tangless Helical Insert, Screw-Locking, #2-56 Thrd Sz, 18-8 Stainless Steel, 1000 PK, Stanley Engineered Fastening, Mfr#: T3585-02C129S$383.99+
Free-Running Helical Insert Repair Kit, Helical Inserts, M10-1.5, M5-0.8, M6-1, M8-1.25, Plain$361.99+