Muteki SR48 Open-End Lug Nuts - M12x1.50, 48mm, Titanium - 20 Pack - 32906T

Muteki SR48 48mm Open-End Lug Nuts – M12x1.50 Titanium Finish

Upgrade compatible aftermarket wheels with the Muteki SR48 open-end lug nut set in a Titanium finish.

The SR48 combines a long 48mm body with an open-end design that allows use with standard or extended wheel studs. Muteki uses cold-forged chrome vanadium steel construction and a 60-degree tapered seat intended for compatible tuner-style aftermarket wheels.

This set includes 20 lug nuts plus one 3/4-inch and 13/16-inch dual-hex adapter.

Product Features

• Muteki SR48 lug nut set
• M12x1.50 thread pitch
• 48mm overall length
• Open-end design
• Compatible with extended wheel studs
• Cold-forged steel construction
• Chrome vanadium / SCM 438 steel
• 60-degree tapered cone seat
• 22mm lug-seat diameter at the widest point
• Titanium finish
• 20-piece lug nut set
• Dual-hex adapter included
• Muteki part number 32906T

Important Wheel Compatibility Notice

These lug nuts are designed for aftermarket tuner wheels that use a 60-degree tapered lug seat.

Do not assume compatibility with factory OEM wheels. Many OEM wheels use a different lug-seat style, including ball-seat, radius-seat, mag/shank, or captive-washer designs. Using the wrong seat style can prevent the wheel from clamping correctly.

Thread Size Compatibility

M12x1.50 is commonly used on select Honda, Acura, Toyota, Lexus, Mazda, Mitsubishi, and other vehicles.

However, thread pitch alone does not confirm fitment. Before ordering, verify:

• M12x1.50 wheel-stud thread pitch
• 60-degree tapered wheel seat
• Adequate thread engagement
• Lug-hole diameter and clearance
• Compatibility with extended wheel studs, if equipped

Open-End Design

The SR48 open-end configuration allows the wheel stud to extend through the end of the lug nut.

This makes the design useful for vehicles equipped with:

• Extended wheel studs
• Motorsport-style studs
• Wheel spacers requiring additional usable stud length
• Track-oriented wheel setups

Product Specifications

• Manufacturer: Wheel Mate / Muteki
• Product Line: SR48
• Part Number: 32906T
• Thread Pitch: M12x1.50
• Length: 48mm
• Seat Type: 60-degree tapered / cone seat
• Lug Seat Diameter: 22mm
• End Style: Open
• Material: SCM 438 / chrome vanadium steel
• Construction: Cold forged
• Finish: Titanium
• Quantity: 20 lug nuts
• Adapter Included: Yes, 3/4-inch and 13/16-inch dual hex

What’s Included

• 20 Muteki SR48 open-end lug nuts
• 1 dual-hex installation adapter

Wheel locks are sold separately.

Titanium Finish Disclaimer

Color Finish Disclaimer: Due to the nature of the Titanium finish, the exact shade, tone, and appearance may vary slightly from the product images and from one lug nut to another. Lighting, viewing angle, monitor settings, and normal finish variation can also affect how the color appears. Product images are for reference only.

Installation Note

Before installation:

• Confirm the vehicle uses M12x1.50 wheel studs
• Confirm the wheel uses a 60-degree tapered seat
• Check for adequate thread engagement
• Inspect the studs and lug seats for damage
• Start every lug nut by hand to avoid cross-threading
• Verify the lug nut clears the wheel’s lug opening

Tighten the lug nuts evenly in the proper crisscross sequence to the torque specification recommended by the vehicle or wheel manufacturer.

Do not use an impact gun for final tightening. Recheck lug-nut torque after the initial driving period.