Caja surtida - Tornillos - Juego de 500 tornillos y tuercas cilíndricas negras, tornillos de cabeza hexagonal interna

Internal hexagon design: Internal hexagon head design for easy tightening with an internal hexagon wrench, improves assembly efficiency and reduces labor time. Wide selection of specifications: Multiple screw lengths are available to meet the needs of various assembly scenarios. Affordable bulk quantity: 500-piece bulk purchase with a better price-performance ratio than the market, suitable for assembly and bulk storage applications.