The OJ Thunderbolt Thunderbolt 10x150mm Hexagon Head Zinc/Yellow is an indispensable tool for any construction or repair project. Its engineered to precision, boasting unmatched strength and durability. This fastener is designed with a hexagon head - ideal for tightening with a wrench or power tool, and the zinc/yellow finish offers exceptional resistance to corrosion. With its robust build, this OJ Thunderbolt product ensures a secure hold in a variety of materials such as wood, concrete, or metal.