---
product_id: 124644293
title: "Mr. Lugnut TK650 7 Spline Tuner Key Lock Lug Nut Silver Finish"
brand: "mr. lugnut"
price: "₨13309"
currency: LKR
in_stock: true
reviews_count: 8
category: "Mr. Lugnut"
url: https://www.desertcart.lk/products/124644293-mr-lugnut-tk650-7-spline-tuner-key-lock-lug-nut
store_origin: LK
region: Sri Lanka
---

# 3.5 inch overall length 7 spline precision fit Alloy steel durability Mr. Lugnut TK650 7 Spline Tuner Key Lock Lug Nut Silver Finish

**Brand:** mr. lugnut
**Price:** ₨13309
**Availability:** ✅ In Stock

## Summary

> 🔐 Unlock your ride’s potential with precision and power!

## Quick Answers

- **What is this?** Mr. Lugnut TK650 7 Spline Tuner Key Lock Lug Nut Silver Finish by mr. lugnut
- **How much does it cost?** ₨13309 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/124644293-mr-lugnut-tk650-7-spline-tuner-key-lock-lug-nut)

## Best For

- mr. lugnut enthusiasts

## Why This Product

- Trusted mr. lugnut brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Pros:** Highly rated with 4.6 stars from 569 reviews, favored for reliability and heavy-duty use.
- • **Compact & Portable:** 3.5-inch length makes it easy to store and carry without compromising functionality.
- • **Precision 7 Spline Fit:** Engineered specifically for Mr. Lugnut spline lug nuts ensuring a secure, exact match.
- • **Universal Compatibility:** Works seamlessly with multiple Mr. Lugnut part numbers (5740L-1, 5744L-1, 5748L-1 & 5746-1).
- • **Rugged Alloy Steel Build:** Crafted from high-strength alloy steel for maximum durability and resistance to wear.

## Overview

The Mr. Lugnut TK650 is a precision-engineered 7 spline tuner key designed to fit specific Mr. Lugnut spline lug nuts. Made from durable alloy steel with a sleek silver finish, it measures 3.5 inches for easy handling and is compatible with multiple part numbers. Trusted by professionals and enthusiasts alike, it offers reliable performance and long-lasting strength for secure wheel fastening.

## Description

Mr. Lugnut TK650 7 Spline Tuner Key Lock Lug Nut Silver Finish This Lug Nut Key Fits 7 Spline Lug Nuts This key is made to work with Mr.Lugnut Spline lugnuts Overall Length 3 1/2" Works On Our Part Numbers 5740L-1, 5744L-1, 5748L-1 & 5746-1

Review: Very sturdy but I ordered the wrong one - Very well built I recommend buying from them
Review: Replacement - Lost mine and needed a replacement. It seems to be heavy metal so no worries using an impact.

## Features

- This Lug Nut Key Fits 7 Spline Lug Nuts
- This key is made to work with Mr.Lugnut Spline lugnuts
- Overall Length 3 1/2"
- Works On Our Part Numbers 5740L-1, 5744L-1, 5748L-1 & 5746-1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07N7PP6QG |
| Best Sellers Rank | #135,367 in Automotive ( See Top 100 in Automotive ) #492 in Wheel & Tire Lug Nuts |
| Brand | Mr. Lugnut |
| Color | Silver |
| Compatible Groove Diameter | 12 Millimeters |
| Customer Reviews | 4.6 out of 5 stars 569 Reviews |
| Drive Style | Spline |
| Exterior Finish | Silver |
| Fastener Type | Wheel |
| Finish Types | Silver |
| Inside Thread Size | M12x1.5 |
| Item Dimensions | 5 x 1 x 1 inches |
| Item Weight | 5.5 Ounces |
| Manufacturer | Mr. Lugnut |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Maximum Shear Strength | 350 to 550 MPa |
| Metal Type | Alloy Steel |
| Model | TK650 |
| Number Of Items | 1 |
| Number of Pieces | 1 |
| Part Number | TK650 Mr Lugnut |
| Screw Head Style | 7 Spline |
| Size Name | 12mm x 88.9mm |
| Thread Class | Coarse |
| Thread Coverage | Fully Threaded |
| Thread Size | 12mm x 1.25mm or 12mm x 1.50mm |
| Thread Style | Right-hand Unified Coarse |
| Thread Type | Unified National Coarse |
| UPC | 759321759561 |

## Product Details

- **Material:** Alloy Steel
- **Fastener Type:** Wheel
- **Exterior Finish:** Silver
- **Color:** Silver
- **Metal Type:** Alloy Steel

## Images

![Mr. Lugnut TK650 7 Spline Tuner Key Lock Lug Nut Silver Finish - Image 1](https://m.media-amazon.com/images/I/5187Mv3sIQL.jpg)
![Mr. Lugnut TK650 7 Spline Tuner Key Lock Lug Nut Silver Finish - Image 2](https://m.media-amazon.com/images/I/51LFf1YP-rL.jpg)
![Mr. Lugnut TK650 7 Spline Tuner Key Lock Lug Nut Silver Finish - Image 3](https://m.media-amazon.com/images/I/51N31M-LEML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very sturdy but I ordered the wrong one
*by C***N on May 8, 2025*

Very well built I recommend buying from them

### ⭐⭐⭐⭐⭐ Replacement
*by B***3 on January 2, 2026*

Lost mine and needed a replacement. It seems to be heavy metal so no worries using an impact.

### ⭐⭐⭐⭐⭐ Lock key
*by Z***Y on November 6, 2023*

Works great. Fits as it should. Very durable. Looks good. Well made and thickness is good.

## Frequently Bought Together

- Mr. Lugnut TK650 7 Spline Tuner Key Lock Lug Nut Silver Finish
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**Shop now:** [https://www.desertcart.lk/products/124644293-mr-lugnut-tk650-7-spline-tuner-key-lock-lug-nut](https://www.desertcart.lk/products/124644293-mr-lugnut-tk650-7-spline-tuner-key-lock-lug-nut)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-07-08*