Feature●[THREADED] - Coarse thread, M4 diameter, 0.7mm pitch.●[SIZE] - 0.28" (7mm) width across flat, 0.13" (3.2mm) height.●[MATERIAL] - Made of stainless steel 304, is superior to regular steel and provides excellent rust resistance.●[USED WITH] - Screws onto a bolt, cap screw or threaded rod of the same thread size.●[GREAT REPLACEMENT] - Great replacement for industrial and construction fasteners,also can be a important accessories in your daily life.Description