For Current and Future Generations of Engines

The performance and production of modern combustion engines is being continually optimized. Therefore, an ever increasing standard is also set for the fasteners. In order to guarantee performance in each individual application, engine bolts must have high elasticity and plastic deformation properties in order to meet:

	The specified clamp force after tightening
	The required clamp load during operation
	As well as a reduction in the additional bolt stress during dynamic load.

KAMAX engine bolts are calculated, dimensioned, and produced while taking into consideration economic aspects, as well as many other requirements such as multiple uses, wear, environmental effects, as well as others.

KAMAX engine bolts fulfill the requirements of our customers as well as the requirements of national and international standards through the use of modern production technology and facilities, as well as a capable quality assurance system.

The constant further development of raw material combined with decades of experience in the production of high tensile strength fasteners guarantees a tight tolerance of the fastener strength.

To increase mechanical properties both pre-heat treated material and work-hardened raw material are used for tensile strengths up to approximately 1000 N/mm².

To increase the fatigue life and to optimize the thread quality, KAMAX Engine Bolts are thread rolled after the heat treat process step when requested.

KAMAX engine bolts are manufactured with all common head types. For secure transfer of high assembly torque, external 12 point, internal and external KARUND™ or our newly developed KAPLUS™ drives are recommended.

With many years of surface coatings experience KAMAX provides engine bolts that are manufactured to maintain a constant friction coefficient.

KAMAX engine bolts offer the advantages of specially developed shaft geometries

Reduced shank bolts with turned or ground shanks.

Reduced shank bolts have a defined relationship between the diameter of the reduced shank, and the minor thread diameter. For this reason they offer the highest possible elasticity.

Through new production methods reduced shank bolts can also be completely cold formed, thereby eliminating the costly grinding or turning step.

Helix bolts with single or multiple helix leads.

Through precision calibration of the outer diameter of the helix, very narrow fitting tolerances are realized.

Groove Bolts with concentrically running grooves and rings.

The outer diameter of the grooves and rings perform the fitting function.

Long shaft screws which are threaded approximately up to the head can be a more cost effective alternative to reduced shank bolts in certain applications.