---
product_id: 12695809
title: "S&G Model 6730-100 Mechanical Safe Lock Kit"
brand: "sargent & greenleaf"
price: "R3789"
currency: ZAR
in_stock: true
reviews_count: 9
category: "Sargent & Greenleaf"
url: https://www.desertcart.co.za/products/12695809-s-and-g-model-6730-100-mechanical-safe-lock-kit
store_origin: ZA
region: South Africa
---

# 1,000,000+ combos Solid brass build 20+ hrs attack tested S&G Model 6730-100 Mechanical Safe Lock Kit

**Brand:** sargent & greenleaf
**Price:** R3789
**Availability:** ✅ In Stock

## Summary

> 🔐 Upgrade to the lock that never quits—because your peace of mind deserves the best.

## Quick Answers

- **What is this?** S&G Model 6730-100 Mechanical Safe Lock Kit by sargent & greenleaf
- **How much does it cost?** R3789 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/12695809-s-and-g-model-6730-100-mechanical-safe-lock-kit)

## Best For

- sargent & greenleaf enthusiasts

## Why This Product

- Trusted sargent & greenleaf brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Premium Brass Craftsmanship:** Solid brass bolt, locking arms, and machined wheel center ensure durability and smooth operation.
- • **Million+ Unique Combinations:** Three key-changeable metal wheels let you customize your lock with over a million possibilities.
- • **Unmatched Security Resilience:** Relock trigger & patented torque adjuster defend against punch attacks and manipulation.
- • **All-Inclusive Installation Kit:** Includes Group 2 lock, D300 dial, dial ring, and mounting hardware for seamless replacement.
- • **Trusted by Professionals Worldwide:** Chosen by business owners and security experts for reliable, long-lasting protection.

## Overview

The Sargent & Greenleaf Model 6730-100 Mechanical Safe Lock Kit offers industry-leading security with a patented relock trigger and torque adjuster tested against expert attacks for over 20 hours. Crafted from premium solid brass components, it supports over 1,000,000 unique, key-changeable combinations. This all-inclusive kit is trusted globally by professionals seeking reliable, durable, and easy-to-install safe lock replacements.

## Description

Sargent & Greenleaf S&G Model 6730-100 Mechanical Safe Lock Kit - Door Lock Replacement Parts - desertcart.com

Review: Winchester TS20-30 install 👍🏼👍🏼 - The winchester ts20 is a decent safe found cheap at tractor supply but ive read alot of bad things about the electric keypad and couldnt sleep good untill it was replaced. I asked around on forums and reddit but everyone said it wasnt possible to install this sargent greenleaf lock or was way too much work. It did take the better part of a day but that was with running around to find a tap. It actually wasnt too bad and didnt even have to drag my welder out! This new lock body if centered on the existing hole (for the cheap back up key lock inside the electric keypad) will be obstructed slightly by the sliding lock lug plate. I removed the lug bar and plate along with the old cheap elec lock and centered the new lock body over the hole in a vertical down position. Marked and center punched the 4 holes for the new lockbody and drilled with a 13/64 drill bit then tapped the 4 holes with a 1/4-20 tap. On the other side i had to drill 2 holes for the dial ring and just screwed it in without tapping using sheet metal screws. Next thing was to mark the locks lug in the retracted and extended position to find out how much of the sliding lock lug plate needed trimmed. I planned to cut the piece off and weld it where it needed to be but got very lucky!.... The cut off sliding plate piece has a hole in it. Theres also a hole left on the sliding lock plate, they line up nearly perfect with where the new lock needed this plate edge! I threw a bolt with washers on it and added a self tapping screw above it for good measure. Everything mechanically worked at this point so finished the install following the 13yr old youtube video everyone references. Install went smooth and this lock feels much more secure and reliable then the cheap electronic lock that was sure to fail. Hope this helps someone.
Review: It’s Awesome & it works perfectly had mine for about 10 years now!!! - Oh yes you should definitely get this to replace that digital lock it’ll always work and it’s easy to install I just watched someone on YouTube install theirs didn’t take about 10 to 15 minutes and hey if there’s ever an EMP you’ll be all good because it’s manual no electrical components it’s better to be safe then sorry especially when it comes to your actual pew pew safe!!! Fit, functionality, quality all 100% can’t go wrong well unless you can’t read instructions or use tools hmmm!!!

## Features

- ENHANCED ATTACK RESISTANCE: Model 6730 includes a relock trigger proven to thwart punch attacks, and a patented torque adjuster that withstands repeated abuse. Tested against expert manipulation for over 20 hours, Model 6730 delivers security you can trust.
- PREMIUM CONSTRUCTION: From the solid brass lock bolt and locking arms to a machined brass wheel center, Model 6730 uses the best materials to deliver top performance—including the ultimate non-slip wheel.
- COMBINATION CHANGEABLE: With three key-changeable metal wheels, Model 6730 supports up to 1,000,000 unique combinations and allows simple combination changes at the lock.
- TRUSTED SECURITY: For a replacement gun safe lock that gives enhanced attack resistance, Model 6730 sets the standard and has earned the trust of consumers and business owners worldwide.
- ALL-INCLUSIVE KIT: Group 2 Combination Lock, D300 Dial, Dial Ring, and Mounting Hardware.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002EDF466 |
| Additional Features | Keyless Features, Lockable |
| Best Sellers Rank | #89,920 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #140 in Cabinet Safes |
| Brand Name | Sargent & Greenleaf |
| Color | Black |
| Control Method | Touch |
| Controller Type | Ring |
| Customer Reviews | 4.4 4.4 out of 5 stars (598) |
| Finish Types | Black |
| Global Trade Identification Number | 00850001149006 |
| Included Components | safe, battery |
| Item Dimensions | 7.75 x 4.25 x 4.63 inches |
| Item Weight | 2.3 Pounds |
| Lock Type | Square Bolt |
| Manufacturer | Sargent & Greenleaf |
| Manufacturer Warranty Description | Two Year Limited Warranty |
| Material Type | Brass, Metal |
| Model Number | 6730-100 |
| Shape | Round |
| Style Name | Modern |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Sargent & Greenleaf
- **Item dimensions L x W x H:** 7.75 x 4.25 x 4.63 inches
- **Lock Type:** Square Bolt
- **Material:** Brass, Metal
- **Special Feature:** Keyless Features, Lockable

## Images

![S&G Model 6730-100 Mechanical Safe Lock Kit - Image 1](https://m.media-amazon.com/images/I/61AhF7pyBiL.jpg)

## Questions & Answers

**Q: does it come with a key to reset the combination**
A: Yes, it does come with a change key.

**Q: will this lock fit all gun safes**
A: It fitted my Costco Bighorn gun safe

**Q: Has anyone installed this lock on Winchester TS12-30?**
A: I have a Winchester TS safe, I installed the S&G 6730-100 Mechanical Lock and it is perfect.   The perfect lock for EMP concerns. The only problem I had was removing the old LaGaurd lock.

**Q: Will this work on a Winchester TS-36-45 from tractor supply?**
A: Probably but the mounting screw holes
Ight be a problem. These locks are pretty universal

## Customer Reviews

### ⭐⭐⭐⭐⭐ Winchester TS20-30 install 👍🏼👍🏼
*by D***M on January 30, 2026*

The winchester ts20 is a decent safe found cheap at tractor supply but ive read alot of bad things about the electric keypad and couldnt sleep good untill it was replaced. I asked around on forums and reddit but everyone said it wasnt possible to install this sargent greenleaf lock or was way too much work. It did take the better part of a day but that was with running around to find a tap. It actually wasnt too bad and didnt even have to drag my welder out! This new lock body if centered on the existing hole (for the cheap back up key lock inside the electric keypad) will be obstructed slightly by the sliding lock lug plate. I removed the lug bar and plate along with the old cheap elec lock and centered the new lock body over the hole in a vertical down position. Marked and center punched the 4 holes for the new lockbody and drilled with a 13/64 drill bit then tapped the 4 holes with a 1/4-20 tap. On the other side i had to drill 2 holes for the dial ring and just screwed it in without tapping using sheet metal screws. Next thing was to mark the locks lug in the retracted and extended position to find out how much of the sliding lock lug plate needed trimmed. I planned to cut the piece off and weld it where it needed to be but got very lucky!.... The cut off sliding plate piece has a hole in it. Theres also a hole left on the sliding lock plate, they line up nearly perfect with where the new lock needed this plate edge! I threw a bolt with washers on it and added a self tapping screw above it for good measure. Everything mechanically worked at this point so finished the install following the 13yr old youtube video everyone references. Install went smooth and this lock feels much more secure and reliable then the cheap electronic lock that was sure to fail. Hope this helps someone.

### ⭐⭐⭐⭐⭐ It’s Awesome & it works perfectly had mine for about 10 years now!!!
*by P***L on September 18, 2025*

Oh yes you should definitely get this to replace that digital lock it’ll always work and it’s easy to install I just watched someone on YouTube install theirs didn’t take about 10 to 15 minutes and hey if there’s ever an EMP you’ll be all good because it’s manual no electrical components it’s better to be safe then sorry especially when it comes to your actual pew pew safe!!! Fit, functionality, quality all 100% can’t go wrong well unless you can’t read instructions or use tools hmmm!!!

### ⭐⭐⭐⭐⭐ Works with Costco's Heritage 14 Gun 10.8 CuFt safe.
*by K***E on July 8, 2017*

I have a client that has the Costco's Heritage 14 Gun safe. We have retrofitted it to be used for files and valuables. It was cheap and worked in the space they had for the safe. They were worried about the bad reviews about the electronic lock failing. Based on the previous review of this product working on this model safe I purchased the Sargent and Greenleaf 6730-100 Safe Lock Kit to retrofit the safe to a manual lock. The instructions are straightforward but I would say you need to be somewhat handy. I would highly recommend you look at the “S&G 6730 Combination Lock Installation” YouTube install video. As mentioned in a previous review. If you wish to retrofit a Costco's Heritage 14 Gun safe you will need to do a little extra work. It is not plug and play but not hard. You will need to drill & tap two additional holes on the outside of the safe for the dial ring and you will need to tap two (top 2 holes) of the 4 holes inside the safe for the lock body. Items you will need are: • Magnetic screwdriver as it will be very helpful • 1/8 drill bit for the outside holes • 8-32 tap for the outside holes • ¼-20 tap for the two existing inside holes • A center punch for setting a drill spot on the outside holes (helpful but not mandatory) • Vise grip for holding the emergency lock in place (helpful but not mandatory) Step by step may be helpful - First open the safe and remove the paneling on the inside of the door (undo 8 phillips screws). Then lift up on the digital keypad to remove it from the door. Unscrew the 2 phillips screws on the back of the keypad and disconnect the cable from the lock body inside the safe from the keypad (the cable that runs into the keypad just unplugs after you remove the back). Now go back into the inside of the door and use your vise grips to lock the emergency lockout in the up position (as outlined in the YouTube video). Now unscrew the front white plate and set it to side. unscrew the lock body from the door and remove it. From there follow the directions and the video drilling and tapping where needed. If you’re handy and have everything together it should take you about an hour. May be helpful to remove the door from the safe. To do this just pull the door straight up. If you watch the video and follow the directions it should be fairly easy. Instructions are very good and the quality of the components is excellent. I would add one thing that is different; the combination lock is not like you high school locker lock. To open you go right 4 times > Left 3 times > right 2 times > and then you turn it about halfway to unlock. Not really an issue but defiantly different and something you will need to get used to. Hope this all helps.

## Frequently Bought Together

- Sargent & Greenleaf S&G Model 6730-100 Mechanical Safe Lock Kit
- SARGENT & GREENLEAF U8 Safe 3-Wheel Combination Lock Change Key (INCLUDES INSTRUCTIONS)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-04-26*