These threaded inserts are a must-have for every woodworker as they allow you to quickly assembly and disassemble custom applications in your shop. They provide a stronger joint than wood screws and are perfect for knockdown furniture, custom jigs, fixtures and provide extra support in difficult to secure areas. Available in 1/4-20, 5/16-18, 3/8-16, and 1/2"-10 thread sizes, these inserts are easy to install. No special installation tools are required, just a bolt and a pair of nuts. Available in packs of ten, these inserts are designed for use in plywood and solid wood. TIP-1420 Internal threads 1/4-20 Pilot hole 11/32" (8.5mm) OAL 15/32" TIP-51618 Internal threads 5/16-18 Pilot hole 7/16" (11mm) OAL 9/16" TIP-3816 Internal Threads 3/8-16 Pilot hole 1/2" (12.5mm) OAL 23/32" RTT-M10TI.4 Internal Threads 1/2" - M10 Pilot hole 1/2" (12.5mm) OAL 13/16"
