Hard-to-Find Fastener Zinc Coarse Thread Grade 2/A307 Hex Bolts, Durable & Versatile Stainless Steel Hex Bolts for Machinery, Automotive, Construction, 3/8-16 x 4-1/2, Pack of 50

Keep your fastenings secure and attractive in any project with Hard-To-Find Fastener’s zinc coarse thread grade 2 A307 hex bolts. Manufactured to ASTM A307 standards, offering reliable performance for general-purpose, low- to medium-strength fastening needs, the course full thread on these hex bolts provides continuous engagement for secure fastening in tapped holes and joints—ideal for lighter-duty applications requiring adjustability. The zinc plated finish delivers corrosion resistance and a clean, bright fastening appearance—perfect for indoor and light outdoor environments. The hex bolt head enables easy installation with standard wrenches or sockets, ensuring consistent torque application. These stainless steel bolts are suitable for machinery, automotive, and construction projects where alignment and moderate clamping force are required.

• Full Thread Design: The course full thread provides continuous engagement for secure fastening in tapped holes and joints—ideal for lighter-duty applications requiring adjustability
• A307 Grade Strength: Manufactured to ASTM A307 standards, offering reliable performance for general-purpose, low- to medium-strength fastening needs
• Zinc Plated Finish: Delivers corrosion resistance and a clean, bright fastening appearance—perfect for indoor and light outdoor environments
• Hex Head Configuration: The hex bolt head enables easy installation for secure tightening with standard wrenches or sockets, ensuring consistent torque application
• Versatile Use: Suitable for machinery, automotive, and construction projects where alignment and moderate clamping force are required. Perfect for shops, contractors, maintenance crews, and repeat‑use environments.
• Diameter: 3/8"
• Length: 4-1/2 Inch
• Material: Steel
• Finish: Zinc
• Head Style: Hex (9/16 Wrench)