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Self Locking Inserts

105 products
Self-locking inserts from Grainger create a lock on the sides of the screw thread and counteract vibratory loosening of screws and bolts. Find them here in a wide range of internal and external thread sizes and overall lengths. Choose from 303 stainless and carbon steel self-locking inserts at Grainger.
Self-locking inserts from Grainger create a lock on the sides of the screw thread and counteract vibratory loosening of screws and bolts. Find them here in a wide range of internal and external thread sizes and overall lengths. Choose from 303 stainless and carbon steel self-locking inserts at Grainger.

Self Locking Thread Inserts

Self Locking Thread Inserts
Easily install these inserts with a standard drill and tap; thread into hole with screwdriver, bolt/jam nut, or optional power driver. Adhesive on the external threads activates immediately after installation, locking the insert into place and sealing against liquids and gases to pressures of 6000 psi.

303 Stainless Steel

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Carbon Steel

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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.