OEM‑compatible Side Bolt (3115504000) for Boomer M2D, Boomer T1D, Boomer XE3C, Boomer 291, Boomer 281, Boomer L2D, Boomer S2, Boomer-282, Boomer M2C, and Boomer S1D underground mining drill rigs. Made from hardened steel, this aftermarket spare part ensures secure fastening and reliable performance under heavy drilling loads, enhancing structural integrity and equipment safety.