Eurospec's new high-strength Turbo-Bolt program. It is a non-stretch alternative to the inconsistent clamping ability of the infamous stretch bolt. Made of SAE 5135 alloy to a resistance of 12.9 and a hardness of 41 HRC, these bolts will provide the consistent clamping load required by today's high boost applications using three piece steel head gaskets. They are sold in sets and packaged on convenient cards with installation instructions included. 10 bolt set 115x11.0x1.5. 10.0mm bolt holes must be chased with 11.0x1.5mm bottoming tap.
