Caja surtida - Tornillos - 20 tornillos hexagonales internos, de alta resistencia, color negro, clase 12.9, M6×40mm

Head type: External angle hexagon head M6*40mm or more, is half-threaded Material: High-strength carbon steel, grade 12.9 Features: Good shear strength and corrosion resistance in many environments, easy to use and non-slip, sturdy and reliable. Usage: Screws are widely used in household and office equipment, communication equipment, ship assembly, and other machinery industries.