---
title: Bolt Patterns & Codes 
description: Bolt pattern codes
---

[Skip to content](https://techcenter.thewheelgroup.com/training/bolt-patterns-codes-#main-content)

English

Show submenu for translations

[![All Logos\_TWG-Color](https://techcenter.thewheelgroup.com/hs-fs/hubfs/All%20Logos_TWG-Color.png?width=400&height=132&name=All%20Logos_TWG-Color.png)](https://www.thewheelgroup.com/#/)

- [TWG Garage](https://www.twggarage.com/)
- [TWG Gear Shop](https://www.shoptwggear.com/)
- [Dealer Web](https://dealers.thewheelgroup.com/)

Open main navigation

Close main navigation

- [TWG Garage](https://www.twggarage.com/)
- [TWG Gear Shop](https://www.shoptwggear.com/)
- [Dealer Web](https://dealers.thewheelgroup.com/)
- English
  
  Show submenu for translations

 Let's Get Started!

- There are no suggestions because the search field is empty.

1. [TWG Training](https://techcenter.thewheelgroup.com/training?hsLang=en)
2. [Product Trainings](https://techcenter.thewheelgroup.com/training/product-trainings?hsLang=en)
3. [Part Numbers Explained](https://techcenter.thewheelgroup.com/training/product-trainings?hsLang=en#part-numbers-explained)

# Bolt Patterns & Codes 

## Learn the breakdown of bolt patterns

 This is the lookup table behind the bolt-pattern position in a wheel part number (for example, the “37” in 8015-2937M18) — consolidated from both source lists, current as of the July 2026 update. 

**[Read the code chart here. ](https://brandfolder.com/s/vrkm3n6pnx3x69jw57hgf49)**

- [Sales Trainings](https://techcenter.thewheelgroup.com/training/sales-trainings?hsLang=en)
- [Dealer Web Training](https://techcenter.thewheelgroup.com/training/dealer-web-training?hsLang=en#main-content)

    - [TWG Internal Training](https://techcenter.thewheelgroup.com/training/dealer-web-training?hsLang=en#twg-internal-training)
- [Product Trainings](https://techcenter.thewheelgroup.com/training/product-trainings?hsLang=en#main-content)

    - [Wheels](https://techcenter.thewheelgroup.com/training/product-trainings?hsLang=en#wheels)
    - [Tires](https://techcenter.thewheelgroup.com/training/product-trainings?hsLang=en#tires)
    - [Part Numbers Explained](https://techcenter.thewheelgroup.com/training/product-trainings?hsLang=en#part-numbers-explained)
- [Warehouse Training](https://techcenter.thewheelgroup.com/training/warehouse-training?hsLang=en)
- [Marketing Trainings](https://techcenter.thewheelgroup.com/training/marketing-trainings?hsLang=en)
- [PRO Tips](https://techcenter.thewheelgroup.com/training/pro-tips?hsLang=en)

## The Wheel Group

<https://www.facebook.com/> <https://www.twitter.com/> <https://www.instagram.com/> <https://podcasts.apple.com/> [mailto:email@email.com](mailto:email@email.com)

Copyright © 2026, The Wheel Group