246-Piece Multi-Specification Set: This practical bolts, nuts, and washers set includes 246 pieces of imperial bolts, nuts, and washers, covering #1/4-20, #5/16-18, #3/8-16 (including flat washers and spring washers in #1/4, #5/16, #3/8 sizes) in various lengths. Ideal for general repairs and replacements

Strong Stainless Steel Material: Made from high-quality stainless steel, ensuring long-lasting strength and stability. They rust-resistant and corrosion-resistant, making them suitable for various conditions with an extended lifespan

Precision Manufacturing: Each component is precisely machined to meets A2-50 grade mechanical performance. With a 48-hour salt spray test, these bolts and nuts provide reliable fastening and won’t loosen or degrade over time