5150 has the solution

this product does NOT include head studs

Constructed with multiple layers of embossed stainless steel

Covered by 16 patented design and manufacturing process innovations

With VSR speed balancing and CFD-optimized housing geometry

BMW B46 Head Stud Thread Insert Kit B28 5150 has the solutionThe BMW B46 Head Stud Thread Insert Kit provides your machine shop everything needed to repair or upgrade the engine block threads on B46 engines. Designed for precision and durability, this kit allows you to restore damaged threads or prepare the block for oversized head studs for improved clamping strength. Please note, this product does NOT include head studs. Head Studs are available for purchase here. Each BMW B46 Head Stud Thread Insert Kit