Prime-Line 9063153 Carriage Bolts, 5/16 In.-18 X 4 In., A307 Grade A Zinc Plated Steel (50 Pack)

The "Smooth Rounded Head Bolt" is a must-have for any project that requires a secure and injury-free fastening solution.

With its smooth rounded head, this bolt offers a safer alternative to traditional hex head bolts, reducing the risk of injury from protruding heads.

The square shoulder also allows for easy tightening or loosening, making it a versatile and convenient option for a variety of applications.

Plus, with specifications that meet both ASME B18.5 and ASTM A307A standards, you can trust that this bolt is built to last and perform flawlessly.

Don't settle for anything less - choose the "Smooth Rounded Head Bolt" for your next project and experience the difference for yourself.