---
title: DTI Washers A449
description: Direct Tension Indicator Washers, or DTI Washers, are used to show structural bolt connections are tightened to the required compression by showing Orange Silicone at the edges once the washer is compressed.
---

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## DTI Washers - A490

| **Bolt ** | **Squirter®** | **DuraSquirt®** | **Squirter®** | **DuraSquirt®** |
| --- | --- | --- | --- | --- |
| **Diameter** | **Plain Finish** | **Plain Finish** | **Mechanical Galvanized** | **Mechanical Galvanized** |
|   |   |   |   |   |
| 1/2" | TIW-124PLSIF | TIW-124PLDSQ | TIW-124MGSIF | TIW-124MGDSQ |
| 5/8" | TIW-584PLSIF | TIW-584PLDSQ | TIW-584MGSIF | TIW-584MGDSQ |
| 3/4" | TIW-344PLSIF | TIW-344PLDSQ |   |   |
| 7/8" | TIW-784PLSIF | TIW-784PLDSQ | TIW-784MGSIF | TIW-784MGDSQ |
| 1" | TIW-104PLSIF | TIW-104PLDSQ | TIW-104MGSIF |   |
| 1-1/8" | TIW-1184PLSIF | TIW-1184PLDSQ | TIW-1184MGSIF |   |
| 1-1/4" | TIW-1144PLSIF | TIW-1144PLDSQ | TIW-1144MGSIF | TIW-1144MGDSQ |
| 1-3/8" | TIW-1384PLSIF | TIW-1384PLDSQ | TIW-1384MGSIF |   |
| 1-1/2" | TIW-1124PLSIF | TIW-1121PLDSQ | TIW-1124MGSIF |   |

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