Hanger boltis a double-ended stud with self-tapping wood thread on one end and machine thread on the other, no head. The wood thread side screws into timber, MDF or particle board. The machine thread end accepts nuts or threaded furniture legs. Made of carbon steel. Widely used for table legs, chair legs, sofa feet, wooden post and fixture assembly. Pre-drilling recommended for hardwood. Sizes M4~M10, length 25–100mm. Zinc plated finish optional.