SKU: 32905U
Muteki SR48 Open End Lug Nuts – Blue 12×1.25 48mm (Set of 20 + Key Adapter)
The Muteki SR48 32905U Open End Lug Nuts are ultra-lightweight performance lug nuts from Japan, designed for maximum strength and style on wheels with extended studs or aftermarket applications. Crafted from high-strength chrome vanadium steel (28DCRVM spec), each nut weighs just 2 oz with thin-wall construction for reduced unsprung weight. The oversized taper seat ensures perfect contact and centering, while the external 17mm hex drive and knurled tips provide easy installation and secure grip. Full stud engagement accommodates long racing studs, and the open-end design fits virtually any wheel/stud combination. Available in striking blue anodized finish with included lock key adapter – the perfect blend of lightweight performance, reliability, and aggressive looks.
Key Features
- Super Lightweight Thin-Wall Construction Only 2 oz per nut using strong chrome vanadium steel
- Oversized Taper Seat Ensures best contact and wheel centering
- External 17mm Hex Drive Easier installation with standard tools
- Knurled Tips Superior grip during install and removal
- Open End Design Accommodates extended or racing studs
- Full Stud Engagement Reliable and stronger than aluminum racing lugs
- Blue Anodized Finish Aggressive style with corrosion resistance
- Includes Lock Key Adapter Added security
Specifications
| Specification | Detail |
|---|---|
| Part Number | 32905U |
| Brand | Muteki (Wheel Mate) |
| Thread Size | M12x1.25 |
| Length | 48mm |
| Seat Type | Taper (60° oversized) |
| Drive Type | External 17mm hex |
| Material | Chrome Vanadium Steel (28DCRVM spec) |
| Finish | Blue anodized |
| Weight per Nut | 2 oz (approx. 57g) |
| Quantity | Set of 20 + 1 lock key adapter |
| Warranty | Muteki Limited Warranty |
Whats Included
- 20 Muteki SR48 Open End Lug Nuts (Blue)
- 1 Lock Key Adapter
Product Notes
- Ultra-lightweight design reduces unsprung weight for better acceleration and handling
- Open-end style fits extended studs common on aftermarket wheels
- Stronger and more reliable than aluminum racing lugs
- Blue anodized finish adds aggressive style to any wheel setup
Installation Notes
- Estimated time: 20-40 minutes
- Use with torque wrench follow wheel manufacturer specs
- Professional installation recommended for proper torque and safety
- Check stud length for full engagement
This Part Fits
| Thread Size | Applications | Notes |
|---|---|---|
| M12x1.25 | Universal – Honda, Acura, Toyota, Nissan, Subaru, Mazda, Mitsubishi & more | Verify wheel seat type and stud length |
Why Choose Muteki SR48 Lug Nuts?
- Lightest weight with exceptional strength from chrome vanadium steel
- Proven in motorsport trusted for reliability under extreme conditions
- Open-end design with knurled tips for easy install and secure fit
- Blue anodized finish for standout style and corrosion resistance
Frequently Asked Questions
- Q: How many lug nuts are in the set?
A: Set of 20 + 1 lock key adapter (enough for 5 wheels with locks). - Q: Will these fit my Honda Civic with aftermarket wheels?
A: Yes, M12x1.25 thread fits many Japanese vehicles. Confirm taper seat and stud length. - Q: Are they stronger than aluminum lugs?
A: Yes, chrome vanadium steel is significantly stronger and more durable than aluminum racing lugs.
Shipping and Handling
- Method: UPS / FedEx Ground
- Availability: In stock ships same or next business day
- Packaging: Secure protective packaging
- Weight: Approx. 3 lbs (set of 20)






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