Keep the most commonly used fasteners readily available with this 425-Piece Grade 5 Coarse Thread Nut & Bolt Assortment Kit. Designed for professional mechanics, maintenance technicians, farmers, contractors, and DIY users, this assortment includes Grade 5 hex head bolts and matching nuts in popular SAE coarse thread sizes. Manufactured for strength and reliability, these fasteners are ideal for automotive repairs, machinery maintenance, equipment assembly, agricultural applications, trailer repairs, and general shop use. The zinc-plated finish helps protect against corrosion while extending service life. Organized in a convenient storage case, this assortment allows you to quickly locate the correct hardware and reduce downtime during repairs and projects. Technical Specifications Quantity: 425 Pieces Bolt Grade: Grade 5 Thread Type: Coarse Thread (UNC) Sizes Included: 1/4"-20 5/16"-18 3/8"-16 Head Style: Hex Head Finish: Zinc Plated Includes Matching Nuts Storage Case Included: Yes