Zhuocheng M6 M27 M8 M12 M24 Carbon Aluminium Stainless Steel Brass Penta Head Bolt

Penta HD Tamper Resistant Bolts, are tamper-resistant security bolts where removal may be required. However, they offer a unique 5 sided Pentagon-shaped head, that requires a specific socket to either remove or install. The key to its tamper resistance is the shape of the Penta Bolt head, its unique shape will not allow standard socket sets to fit or be wedged on and used for removal.

Penta head bolts offer greater torque capacity than hexagonal head bolts due to their larger contact area between the nut and bolt threading. This means they are better suited for higher-stress applications such as heavy machinery or vehicles. Penta head bolts also have improved resistance to corrosion thanks to their additional side surfaces and improved surface finish compared to hexagonal bolts, making them ideal for outdoor or marine applications where weather exposure can be an issue.