Size of a spherical nut M6: The total length is 12 mm, the outer diameter is 10 mm, the threaded hole diameter is 5.35 mm, the size will meet your expectations, incompatible with bolts. Imperials 1/4 - 20 bolts Material: Carbon steel; The transverse pins are made in a good quality carbon, hard and robust, anti-rust and anticorrosion material, for a long service life Detailed features: These small slit nuts are easy To use and practices for you, they adapt with connector bolts to strengthen the right angle seals Many uses: These nuts are compatible for bedding, child beds and furniture Delivered in kit, also work on the wood, the boards, the kitchen work plans, etc. Quantity: 20 pieces, enough for good use, they can replace an original nut missing as you wish; Note: Please check the size before you buy Set of 20 m6 nuts with furniture slot, chairs or beds Size of a nut M6: The total length is 12 mm, the outer diameter is 10 mm, the threaded hole diameter is 5.35 mm, the size will meet