This M5 hex head bolt assortment kit is fully constructed from high-quality 304 stainless steel, which solves the rusting problem of ordinary iron bolts when exposed to moisture, oil and other harsh working conditions. Every bolt, nut, flat washer and lock washer is precision machined with standard metric threads and smooth surface treatment. The matched spring lock washers provide reliable anti-loosening performance for vibrating mechanical equipment.

All specifications are sorted into individual compartments of a transparent plastic storage box with clear size marking, convenient for quick access and long-term tidy storage. This hardware set is an ideal replacement fastener supply for auto maintenance, mechanical overhaul, industrial equipment installation, pipeline fixing and metal structural connection projects.

️ Warning: Includes small metal parts. Keep away from children under 3 years old to prevent accidental swallowing and choking hazards.