566-Piece Multi-Specification Set: This practical set includes 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
Sturdy Alloy Steel Material: Made from high-quality alloy steel, offering long-lasting durability and stability. The galvanized finish improves corrosion resistance, ensuring the bolts and nuts remain rust-free and perform well under various conditions
Precision Manufacturing: Each component is precisely machined to U.S. grade 5 mechanical performance and with a 48-hour salt spray test, these bolts and nuts provide reliable fastening and won’t loosen or degrade over time
Quick Part Identification: Comes with 3 adjustable transparent storage boxes. Each compartment is labeled for easy identification of different sizes, improving sorting, retrieval, and overall work efficiency
Versatile Use: Ideal for home repairs, DIY projects, and maintenance tasks such as furniture assembly, vehicle repair, and instrument fixing. A must-have for your toolbox
