Cap Nut

The Cap Nut (OEM 551 528 76) is a durable alternative replacement designed to perform reliably on rock drills and drifter rigs in harsh mining and tunnelling applications. It fastens and clamps components together, holding structural integrity and correct preload under constant vibration and impact.

Made from high-tensile, corrosion-resistant steel to accurate thread tolerances, it provides dependable clamping force and resistance to loosening and fatigue. As an alternative spare part, it offers full functional interchangeability at a competitive cost, without compromising performance or reliability.

Delkom manufactures and exports premium alternative rock drilling, drifter equipment and spare parts to more than 100 countries. Contact us for current availability, bulk pricing and technical support.