This 8pcs set contains steel king pin screws made for the original HPI Savage 21 platform, intended as aftermarket replacement fasteners. These screws locate the king pin where it retains steering and suspension linkages and are supplied for routine service or setup work.
Installation guidance emphasises fit and compatibility rather than specific dimensions. Replace worn or damaged screws one at a time to maintain alignment, confirm thread engagement and torque to prevent stripping, and inspect mating bushings and bearings before reuse. Because these are steel components, select an appropriate thread locker grade and schedule inspection intervals that suit off-road running.
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