Through Bolt

Engineered for demanding mining and tunneling duty, the Through Bolt (OEM HD612-03604) is a high-quality aftermarket replacement for the rock drilling machine or hydraulic drifter assembly. It provides the clamping, locking, spacing or locating function needed to keep connected parts stable in service.

The part is designed to preserve joint integrity where repeated impacts, vibration and service loads can otherwise promote wear or loosening. The part offers an alternative sourcing option for fleets focused on equipment availability, predictable maintenance and competitive operating cost. Among the listed compatible applications are HCR 10-DS and HCR 12, supporting easier cross-reference during maintenance planning.

Contact Delkom for stock status, technical matching and volume pricing, using Delkom 130 100 423 and OEM reference HD612-03604 for accurate identification. Delkom combines rock-drilling spare-parts expertise with international supply capability, serving mining and tunneling customers across more than 100 countries.