These Alloy steel heat treated bolts are stronger than the original stretch bolts. They are intended to be used over and over and do not stretch.
Tighten to the factory spec:
ALH Intake Manifold 6mm Allen Bolts: 18 ft-lbs
BEW Intake Manifold Bolts: 16 ft-lbs
Compatible Engines: TDI ALH BEW
Compatible Part Numbers: N 904 242 01