---
product_id: 401638423
title: "STEELMAN PRO 78540 6-Spline 45/64-Inch Locking Lug Nut Socket"
brand: "steelman pro"
price: "₩110798"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/401638423-steelman-pro-78540-6-spline-45-64-inch-locking-lug
store_origin: KR
region: South Korea
---

# Locking nut removal 6-spline design Heat-treated steel STEELMAN PRO 78540 6-Spline 45/64-Inch Locking Lug Nut Socket

**Brand:** steelman pro
**Price:** ₩110798
**Availability:** ✅ In Stock

## Summary

> 🔧 Unlock the Power of Precision!

## Quick Answers

- **What is this?** STEELMAN PRO 78540 6-Spline 45/64-Inch Locking Lug Nut Socket by steelman pro
- **How much does it cost?** ₩110798 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/401638423-steelman-pro-78540-6-spline-45-64-inch-locking-lug)

## Best For

- steelman pro enthusiasts

## Why This Product

- Trusted steelman pro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unlock Your Wheels:** Easily remove locking lug nuts with precision.
- • **Slim Fit, No Damage:** Thin-walled design ensures a snug fit without harming your wheels.
- • **Durability Meets Design:** Crafted from heat-treated chrome vanadium steel for a lifetime of use.
- • **Versatile Compatibility:** Double-hex heads fit both 13/16 and 7/8-inch sockets.
- • **Extra Length, Extra Care:** Long design keeps wrenches away, preventing scratches.

## Overview

The STEELMAN PRO 78540 6-Spline 45/64-Inch Locking Lug Nut Socket is engineered for professionals, featuring a durable heat-treated chrome vanadium steel construction and a thin-walled design for easy access to locking lug nuts without damaging your wheels. Its extra-long design and double-hex compatibility make it a versatile tool for any automotive enthusiast.

## Description

STEELMAN PRO 78540 6-Spline 45/64-Inch Locking Lug Nut Socket

## Features

- REMOVE LOCKING NUTS - Designed to easily remove spline style aftermarket lug nuts
- 6-SPLINE SOCKET - Key has a 6-spline 45/64-inch socket design that fits snugly around corresponding security lugs
- BUILT TO LAST - Made of heat-treated chrome vanadium steel and finished with corrosion resistant black oxide to hold up to a lifetime of use
- THIN WALLED - Socket style lug key features a thin-walled design to more easily fit lug nuts without damaging wheels
- EXTRA LONG DESIGN - Lug key is constructed with an extra-long design to keep wrenches away and prevent nicks and scratches
- DOUBLE-HEX HEADS - Key head is designed to fit both 13/16 and 7/8-inch sockets and lug wrenches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Steelman Pro |
| Item Length | 3.5 Inches |
| Material | Alloy Steel |
| Drive System | Spline |
| Finish Type | Corrosion Resistant,Black Oxide Finish |
| Number of Pieces | 1 |
| UPC | 099198785400 |
| Global Trade Identification Number | 00099198785400 |
| Manufacturer | STEELMAN PRO |
| Model number | 78540 |
| Colour | Regular |
| Number of Memory Sticks | 1 |
| Specific Product Use | professional |
| Item Weight | 181 g |
| Item model number | 78540 |
| Power Source | Hand powered |
| Included Components | one socket |
| Are batteries included? | No |

## Product Details

- **Brand:** Steelman Pro
- **Item Length:** 3.5 Inches
- **Material:** Alloy Steel
- **Drive System:** Spline
- **Finish Type:** Corrosion Resistant,Black Oxide Finish

## Images

![STEELMAN PRO 78540 6-Spline 45/64-Inch Locking Lug Nut Socket - Image 1](https://m.media-amazon.com/images/I/61ZtvlQBFWL.jpg)
![STEELMAN PRO 78540 6-Spline 45/64-Inch Locking Lug Nut Socket - Image 2](https://m.media-amazon.com/images/I/61HfjSm0YgL.jpg)
![STEELMAN PRO 78540 6-Spline 45/64-Inch Locking Lug Nut Socket - Image 3](https://m.media-amazon.com/images/I/61UAeD7081L.jpg)
![STEELMAN PRO 78540 6-Spline 45/64-Inch Locking Lug Nut Socket - Image 4](https://m.media-amazon.com/images/I/31rJR1OsXcL.jpg)

## Questions & Answers

**Q: Will this fit a 14m? My truck has m14x1.50 locks**
A: Thank you for your question! Unfortunately, the Steelman Pro 78540 6-Spline 45/64-Inch Locking Lug Nut Socket will not fit 14mx1.50.  In order to determine what will fit your locks, we would need the size and the pattern of the lugs.  Please let us know if we can be of any further assistance!

**Q: Is the 6 spline 45/64 bigger than the 6 spline 13/16?**
A: I don't have both here to verify physically but 13/16 = 52/64  and this is larger than 45/64

So I'd have to answer: No the 45/64 is smaller than the 13/16.

Hope this helps

**Q: Will this socket fit a 17mm 6 spine lug nut?**
A: Hi Jessica, thank you for the question. The 78539 has an inner diameter of 41/64” this equates to 16.3mm. If you by chance, have a 2012 or newer Mercedes S-class that you are trying to fit this onto, we recommend the STEELMAN LT5110 17mm Star Shape Deep Impact Socket for Mercedes S-class you can find it at this address. https://www.amazon.com/dp/B01JC1KD5E Thank you!

**Q: Will this fit my 2009 Honda Civic Ex?**
A: Thank you for your inquiry!  Unfortunately, due to the potential for after market parts, we cannot say for sure that this will fit.  As long as the lugs on your vehicle meet the 6-spline shape and 41/64-inch size, this socket will fit.  Please let us know if we can be of any further assistance!

## Frequently Bought Together

- Steelman Pro 6-Spline 45/64-Inch Socket-Style Locking Lug Nut Key, Removes Spline-Style Aftermarket Lug Nuts, Durable, Thin-Walled
- Steelman Pro 7-Spline 3/4-Inch Socket-Style Locking Lug Nut Key, Removes Spline-Style Aftermarket Lug Nuts, Durable, Thin-Walled

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/401638423-steelman-pro-78540-6-spline-45-64-inch-locking-lug](https://www.desertcart.kr/products/401638423-steelman-pro-78540-6-spline-45-64-inch-locking-lug)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-23*