The Bomag 08251221 Domed Cap Nut is a genuine OEM fastener designed for Bomag pavers including the BF 600 P-3 S 500, BF 700, BF 800, and BF 900 series. Sourced directly from Bomag, this component meets the exact material and dimensional standards of the original hardware. Confirmed fitment includes the BF 800 C S500, BF 800 C S600, BF 800 P S500, BF 800 C S600 SOIL, BF 900 C S500, BF 700 C-2 S 600, BF 700 C-2 S 500, BF 700 C S500, BF 800 C S600-4i, BF 800 P S500-4i, BF 600 P-3 S 500, and BF 800 C-3 S 600 pavers.
Key Features
- Genuine OEM Fastener Grade — manufactured to Bomag's exact material specification, ensuring the correct hardness rating and thread form for secure, lasting engagement
- Protective Domed Profile — the closed cap design shields the exposed thread end from contamination, corrosion, and mechanical damage in paving environments
- Drop-In Replacement — matches the original thread pitch and cap geometry so this nut seats correctly without rework or adaptation
- Broad Paver Coverage — confirmed fit across BF 600 P-3, BF 700 C, BF 700 C-2, BF 800 C, BF 800 P, BF 800 C-3
- Structural Integrity at the Joint — a correctly torqued domed cap nut maintains clamping force and prevents joint loosening under the vibration loads typical of asphalt paving operations
A domed cap nut is an internally threaded fastener with a closed, rounded top that covers and protects the end of the bolt or stud it is threaded onto. On Bomag pavers, these nuts are used at assembly joints where exposed thread ends must be shielded from asphalt residue, moisture, and abrasion encountered during paving. When a domed cap nut is missing, damaged, or cross-threaded, the underlying stud or bolt becomes vulnerable to corrosion and mechanical wear, which can lead to fastener seizure adjustments. Replacing a worn or missing cap nut with a genuine Bomag part restores full protection to the joint and keeps the assembly torqued to specification.
Part Details
| Part Number | 08251221 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Domed Cap Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Paver | BF 800 C S500 | 00800677, 00800679 |
| Paver | BF 800 C S600 | 00800681, 00800683, 00800779, 00800829, 00824541 |
| Paver | BF 800 P S500 | 00800685, 00800687 |
| Paver | BF 800 C S600 SOIL | 00800745 |
| Paver | BF 900 C S500 | 00800753 |
| Paver | BF 700 C-2 S 600 | 00800797 |
| Paver | BF 700 C-2 S 500 | 00800799 |
| Paver | BF 700 C S500 | 00824207 |
| Paver | BF 800 C S600-4i | 00824211 |
| Paver | BF 800 P S500-4i | 00824217 |
| Paver | BF 600 P-3 S 500 | 00826343 |
| Paver | BF 800 C-3 S 600 | 00826407 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
