


Sandvik / Tamrock
BG 003 520 31a Screw, Hexagon Head
DL321-7
| Part Number | BG 003 520 31a |
| Description | Screw, Hexagon Head |
| Brand | Sandvik (Tamrock) |
| Assembly | Box, Side |
| Type | Drill Rig Spare Part |
Quick answer
BG 003 520 31a (also written BG00352031a, BG-003-520-31a, or BG.003.520.31a) is a Sandvik screw, hexagon head spare part used in the Box, Side assembly of the Sandvik DL321-7. Verified compatible with 1 Sandvik machine model including DL321-7. 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: BG00352031a, BG 003 520 31a, BG-003-520-31a.
Compatible machines
1
OEM cross-reference
BG 003 520 31a
About Sandvik BG 003 520 31a Screw, Hexagon Head
This fastener is used in the Box, Side of the Sandvik DL321-7. High-strength fasteners in drilling equipment must withstand extreme vibration, cyclic loading, and environmental exposure. Using OEM-specification fasteners ensures proper clamping force and joint integrity in critical assemblies.
This is an OEM-compatible aftermarket replacement part for the Sandvik DL321-7 (DL321-7). 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.

