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E-Z Lok Threaded Insert, Zinc, Hex-Flanged, 1/4'-20 Internal Threads, 13mm Length (Pack of 100) (Fоur Paсk) - -. E-Z Lok Threaded Insert, Zinc, Hex-Flanged, 1/4"-20 Internal Threads, 13mm Length (Pack of 100) (Fоur Paсk) - -. Provides a Strong Machine Thread In Soft Woods 。 Ideal For Use in Pine, Plywood, Composition Board, and MDF 。 Designed For Use In Applications Such As Ready-To-Assemble Furniture, Drawer Pulls, Display Case, and Shipping Crates 。 Simply Drill the Appropriately Sized Hole and Install with Hex Key or Optional Drive Tool 。 Tapered External Threads Resist Pull-Out Caused By Vibration 。 Hex Drive inserts for soft wood are an inexpensive insert for use in ready-to-assemble furniture, drawer pulls, or wherever the avoidance of thread stripping is desired. Ideal for use in materials such as pine, plywood, composition board, and MDF, Hex Drive inserts feature tapered external threads which resist pull out caused by vibration. These die-cast zinc inserts are available in a flush design for "below the surface" installation or in a flanged design for installation depth limiting applications. 。 。 。