


Sandvik / Tamrock
552 177 85 Cross-recessed cheese head screw
Rock Drill Spare Part
Available — Request Quote| Part Number | 552 177 85 |
| Description | Cross-recessed cheese head screw |
| Brand | Sandvik (Tamrock) |
| Assembly | Pressure accumulator |
| Type | Rock Drill Spare Part |
Quick answer
552 177 85 (also written 55217785 or 552-177-85) is a Sandvik cross-recessed cheese head screw spare part used in the Pressure accumulator assembly of the Sandvik DD320-40. Verified compatible with 3 Sandvik machine models including DD320-40, DL310-7, DT820. Used in 18 drifter configurations (HF800T, HFX5, HFX5T). 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: 55217785, 552 177 85, 552-177-85.
Compatible machines
3
Drifter configurations
18
OEM cross-reference
552 177 85
About Sandvik 552 177 85 Cross-recessed cheese head screw
Designed for the demanding environment of the Sandvik DD320-40, this fastening component secures critical elements within the Pressure accumulator. 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 DD320-40 (DD320-40). 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.




