5655 Black Spline Drive Lug Nut – 12x1.5 Thread, 6-Cut Spline, 1.38" Tall, 60° Conical Seat
The 5655 is a 12x1.50 chrome spline drive lug nut with a 6-cut spline drive, 1.38" overall height, and a 60° conical seat. Chrome-plated steel construction delivers secure, tuner-style wheel mounting on passenger car factory and aftermarket wheels.
The slim 6-cut spline body measures just 0.810" across, clearing tight and recessed lug holes where a standard hex nut will not fit, and installs with a matching spline key instead of a socket. Sold individually, in 50-piece boxes, or 300-piece cases for shops and wholesale customers.
Key Features
- 12x1.50 right-hand thread for M12 x 1.50 studs
- 6-cut spline drive — requires a 6-spline key (see 5699SK 6-Cut Spline Key)
- 60° conical (tapered) seat — standard on most aftermarket wheels
- 1.38" overall height, sized for passenger car applications
- 0.810" spline body diameter, 0.570" seat diameter
- Chrome-plated steel resists corrosion
- Available 1 PCS, 50 PCS per box, or 300 PCS per case
Specifications
| Part Number | 5655 |
| Brand | C-HORSE |
| Thread Size | 12x1.50 (M12 x 1.5) |
| Thread Direction | Right-hand |
| Drive Type | 6-cut spline drive |
| Overall Height | 1.38" |
| Spline Body Diameter | 0.810" |
| Seat Diameter | 0.570" |
| Seat Type | 60° conical / tapered |
| Application | Passenger car |
| Material | Steel |
| Finish | Chrome-plated |
| Spline Key Included | No — order 5699SK separately |
| Packaging | 1 PCS / 50 per box / 300 per case |
Fitment Confirmation Checklist
- Stud thread is 12x1.50 (M12 x 1.5), right-hand
- Wheel seat is 60° conical / tapered — not ball/radius or flat
- Lug hole accepts a 0.810" diameter spline body
- 1.38" height clears center caps and trim rings
- A 6-cut spline key is on hand or ordered with the nuts
Installation & Torque Guidance
Install using the 5699SK 6-cut spline key with a standard socket or wrench over the key. Hand-thread each nut first to prevent cross-threading, then tighten in a star pattern to the vehicle manufacturer's torque specification with a calibrated torque wrench. Re-torque after 50–100 miles. Do not use an impact wrench directly on the spline key. Professional installation is recommended.
FAQs
What thread does this fit?
12x1.50 right-hand thread, also written as M12 x 1.5.
What tool do I need?
A 6-cut spline key — part 5699SK. A standard lug socket will not drive this nut.
Will these work on aftermarket wheels?
Yes, on wheels with 60° conical seats and 12x1.50 studs. Always verify the wheel manufacturer's specifications.
How many do I need?
Most vehicles use 4–8 nuts per wheel. Count your studs, multiply by four, and add spares.
Is a key included?
No. Order the 5699SK spline key separately.