Penta Head Bolts
Penta Head Bolts have a special pentagonal five point head. They are commonly used for ground lid and manhole cover security. They require a special pentagon socket not found in retail or hardware stores and so are tamper proof.
Penta Head Bolts Diameters
Penta Head Bolts are available on the FCH Network with Imperial/US diameters that range from 3/8 to The length of Penta Head Bolts is usually measured from the point to the underside of the head.