50 Caliber Racing
Lug Nuts Flat
Lug Nuts Flat
Search matches make and model, not model year. This part fits:
RZR 570 / 800 (2008–2018)
RZR XP900 (2011–2014)
ACE (2016–2018)
Not sure? Text your year, make and model to 719-428-6837 or use Build Concierge and we'll confirm the right part. Freight-heavy parts can't be returned cheaply, so it's worth asking. Need a factory part instead? We can order OEM parts for any major make.
Couldn't load pickup availability
Why Buy From SxS Network?
Located at Pikes Peak International Raceway, home of Adrenaline Park and Peak Adrenaline. We run many of these parts on our personal Maverick R and X3 rigs.
Not sure what fits your build? Call or text Tim directly at 719-428-6837. Real riders, real advice — no call centers.
Based in Fountain, CO. Support a Colorado business that actually rides.
Most orders leave the manufacturer in 1–2 business days — no middle warehouse, no re-boxing. Ship-by date shown above.
Product Description
Lug Nuts Flat Seat – Chrome (Multiple Sizes & Pack Options)
Upgrade your ATV / UTV wheels with premium 50 Caliber Racing flat seat lug nuts, designed for strength, precision fitment, and long-lasting performance. Built from hardened steel alloy with a durable chrome finish, these lug nuts are ideal for both OEM and aftermarket hub-centric wheels.
Key Features
- Flat base design for hub-centric wheels (non-tapered)
- High-strength steel alloy construction
- Durable chrome-plated finish for corrosion resistance
- Precision threads for smooth and secure installation
- Suitable for ATV / UTV applications
Available Sizes & Specs
12x1.25 (17mm Hex)
- Length: 32mm
- Flange Diameter: 20mm
- Common fitment: Kawasaki Teryx, Yamaha YXZ1000R
12x1.50 (17mm Hex)
- Length: 32mm
- Flange Diameter: 20mm
- Common fitment: Polaris RZR XP1000, Ranger (newer models)
10x1.25 (17mm Hex)
- Flat Seat Diameter: 19mm
- Common fitment: Yamaha, Can-Am, and similar applications
3/8"-24 (14mm Hex)
- Length: 32mm
- Base Diameter: 19mm
- Common fitment:
- Polaris Ranger (2000–2012, non-XP)
- RZR 570 / 800 (2008–2018)
- RZR XP900 (2011–2014)
- Sportsman (non-XP models)
- ACE (2016–2018)
Pack Options
- Single Lug Nut – Ideal for replacements
- 16 Pack Set – Perfect for full wheel installation
Important Fitment Notes
- These are flat seat (NOT tapered) lug nuts
- Only compatible with hub-centric wheels requiring flat base lug nuts
- Will NOT work with conical/tapered seat wheels
- Always verify your thread size before purchasing
- Some Polaris models switched from 3/8" to metric — please measure before ordering
Installation Guidelines
- Use correct socket size (14mm or 17mm depending on variant)
- Do not over-tighten
- Re-check torque after installation
What’s Included
- Based on selection:
- 1 × Lug Nut
- OR
- 16 × Lug Nuts
