Because one leg is shorter than the other, you can adjust the position of these nuts before you insert a machine screw. Also known as J-nuts, they have a slightly looser fit on thin panels than U-nuts. These nuts have a hex- or square-shaped barrel, so you can hold them in place with a wrench as you tighten a fastener. Multiple threads in the barrel engage with the screw for secure fastening.

Also known as J-nuts, these nuts have one leg that’s shorter than the other to give you some wiggle room when placing them. Compared to U-nuts, they have a slightly looser fit. Use them with a tapping screw to secure parts on electric consoles and thin panels. Since they’re coated in black phosphate, they’re mildly corrosion resistant in dry environments.

Use these light-duty clip-on nuts in low-clearance applications. They're also known as J-style clip-on nuts. Made from black phosphate-coated steel, they're mildly corrosion resistant in dry environments.