A closed end seals out elements and protects the threads on these inserts from debris.

Knurls hold these inserts in hardwoods such as oak, maple, and walnut to prevent twisting.

Create strong threads in wood and plastic that won’t get clogged with paint or debris. These tee nut inserts have a protective plug on bottom to block out substances during finishing processes.

These 18-8 stainless steel tee nut inserts have better corrosion resistance than zinc-plated steel tee nut inserts.

Hammer corrosion-resistant threads into pine, spruce, and other softwoods—these inserts have six prongs around the barrel for a strong hold that prevents them from twisting and loosening.

Ridges on the barrel of these inserts make them less likely to split hardwood than inserts with prongs. They're often used in wood that has been cut across the growth rings.

Hooked prongs give these inserts excellent holding power even when removing screws.