Sandvik / Tamrock
550 837 81 HEXAGON HEAD BOLT (HALF THREAD)
DL421-15C
Available — Request Quote| Part Number | 550 837 81 |
| Description | HEXAGON HEAD BOLT (HALF THREAD) |
| Brand | Sandvik (Tamrock) |
| Assembly | Rod Retainer |
| Type | Drill Rig Spare Part |
Quick answer
550 837 81 (also written 55083781 or 550-837-81) is a Sandvik hexagon head bolt (half thread) spare part used in the Rod Retainer assembly of the Sandvik DX700. Verified compatible with 3 Sandvik machine models including DL421-15C, DL421-7C, DX700. Available as an aftermarket replacement drill part from BK Drilling — Turkey-based Sandvik and Epiroc spare parts supplier serving mining contractors worldwide. Quote on request via WhatsApp; typical lead time 3-7 days for stock items.
Part code alternate forms: 55083781, 550 837 81, 550-837-81.
Compatible machines
3
OEM cross-reference
550 837 81
About Sandvik 550 837 81 HEXAGON HEAD BOLT (HALF THREAD)
Designed for the demanding environment of the Sandvik DX700, this fastening component secures critical elements within the Rod Retainer. Mining equipment fasteners are subject to strict torque specifications and material requirements to maintain structural safety during operation.
This is an OEM-compatible aftermarket replacement part for the Sandvik DX700 (DX700). Also compatible with Tamrock branded equipment of the same model series. BK Drilling supplies this part with fast worldwide shipping and competitive pricing.
Frequently asked questions
Why use OEM-compatible parts for Sandvik drilling equipment?
OEM-compatible parts are manufactured to the same dimensional tolerances and material specifications as original components, ensuring proper fit, reliable performance, and maintaining the designed safety margins of the drilling machine.