The BimmerHeads M20 Engine Hardware Kit — 215 brand-new yellow zinc plated bolts, nuts, and washers, spec’d, sourced, and packaged in-house for a complete M20 engine rebuild or reseal. Every section packaged and labeled so you know exactly what goes where. Complete hardware coverage for all BMW M20 engines Includes a new OE BMW timing belt tensioner stud Yellow zinc plated for corrosion resistance and a clean finish No more hunting for the right bolt or second-guessing what’s reusable. The same kit we use on every M20 build — new hardware, sorted and ready.