These insert nuts are made from high-quality zinc-plated carbon steel for durability and rust resistance. Designed with an external thread and hex socket drive, they can be easily installed using a hex key wrench. Unlike barrel nuts or T-nuts, these insert nuts can be installed from one side of the workpiece, offering greater convenience and flexibility. Available in multiple sizes, they accommodate various screw dimensions to suit different project requirements. The pre-drilled hole should be as deep as the length of the insert nut plus any portion of the bolt that extends beyond the nut in the workpiece.Insert nuts provide a threaded socket in wooden materials, similar to wall anchors. When screwed into a pre-drilled hole, the external threads engage with the wood, securely anchoring the nut in place and preventing rotation or pull-out.Features: - Made from high-quality zinc-plated carbon steel for durability and corrosion resistance - External thread and hex socket drive for easy installation with a hex key - Can be installed from one side of the workpiece, offering improved accessibility - Available in various sizes to match different screw dimensions - Requires a pre-drilled hole depth equal to the nut length plus any extended bolt portion Specifications: - Material: Zinc-plated carbon steel - Type: Hex socket screw-in - Thread Type: Coarse thread - Size and Quantity (Optional): - M6 x 10mm 20 pcs - M6 x 13mm 20 pcs - M6 x 15mm 20 pcs - M6 x 17mm 20 pcs - M6 x 20mm 20 pcs - M6 x 25mm 20 pcs - M8 x 13mm 20 pcs - M8 x 15mm 20 pcs - M8 x 17mm 20 pcs - M8 x 20mm 20 pcs - M8 x 25mm 20 pcs - M10 x 25mm 20 pcs Package Includes: - 20 pcs x Insert Nuts Note: - Please allow 13 mm variation due to manual measurement and slight weight differences. - Color may vary slightly due to lighting and monitor settings.