Key features

• •【Detailed Dimensions】1/4"-20 x 10mm/15mm/20mm/25mm, 4 sizes commonly used threaded inserts in a plastic case, different sizes can satisfy your different needs. Internal thread insert type: 1/4"-20, thread type: 20 threads per inch, coarse thread, fit standard 1/4 20 screws bolts perfectly.
• •【Blue Zinc Plated Steel】Made of high quality carbon steel, blue zinc plated on the surface which have good corrosion resistance in bad environment like high temperature, high hardness and perfect wear resistance, standard internal hex socket, without burr, smooth, non-slip, which can ensure long time using.
• •【Easy To Install】You can drill a hole by using a 3/8" drill bit, ensure a precise 90 degree angle for inserting the threaded inserts, then you need to screw the inserts into the 3/8" holes by using our hex wrench. Make sure you countersink the hole to head size before you insert the threaded sleeve, fit standard 1/4 20 screws bolts perfectly.
• •【Threaded Inserts Assortment Kit】Total 145 pieces 4 sizes 1/4-20 threaded inserts are packed in a durable transparent box with label for you. It is easy to distinguish the size of the product, you can choose the suitable one to use in your wood furniture. Our threaded inserts have standard internal hex socket, without burr, smooth, non-slip.
• •【Wide Applications】You can use our threaded inserts to repair file cabinets and chair leg, you can also use them on head board and foot board of wood furniture. Widely used for soft woods of pine, plywood, fiberboard, etc, work perfectly on the furniture combination, you just need to drill a hole that the size of the body into the wood for the threaded inserts.