10-piece set of 1/2-20 UNC hex bolts with plain finish Specifications - Quantity: 10 pieces total - Diameter and thread: 1/2 inch diameter with 20 threads per inch (UNC) - Length under head: 3 inches - Head engagement: 3/4 inch wrench size - Material: 18-8 stainless steel (304 grade) - Finish: Plain Key benefits and features - Corrosion resistance: Made from 304 stainless steel to provide good resistance to rust and staining in many indoor and outdoor environments - Strength and reliability: 1/2 inch diameter with UNC threads offers solid clamping speed and durable performance for medium-duty applications - Easy installation: Standard 3/4 inch wrench size enables straightforward tightening with common hand tools - Consistent supply: A 10-piece set provides enough fasteners for typical projects and handy spare pieces - Versatile compatibility: Designed to pair with nuts or tapped holes that accept 1/2-20 UNC fasteners Intended uses and applications - Machinery or frame assembly where a 3 inch length under head is required and a 1/2-20 thread is specified - Outdoor or semi outdoor projects such as deck railing mounts or equipment mounting on steel frames where stainless fasteners reduce corrosion risk - Automotive or equipment installation in areas with exposure to moisture where a plain finished stainless bolt is appropriate Care and handling notes - Confirm compatibility with 1/2-20 UNC nuts or threaded holes - Ensure proper torque to avoid over-tightening and to maintain joint integrity - Store in a dry environment to preserve the plain finish and corrosion resistance of the stainless steel