---
title: "Task List Lock Icon | Free Download PNG & SVG | Ultimate Duotone"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/task-list-lock--15873
canonical_url: "https://www.streamlinehq.com/icons/download/task-list-lock--15873"
summary: "Clean duotone icon of a locked document with three list lines. Used for secure task lists and permissions."
---

# Task List Lock icon

The Task List Lock icon shows a document with three horizontal list lines and a padlock overlapping its lower-right corner. Drawn in the duotone style on a 24px grid with a 1px stroke, keeping the layered shapes crisp and readable. Use it for locked task lists, protected documents, access controls, permissions, and secure workflow interfaces. It belongs to Ultimate Duotone set in the Ultimate family.

## Preview

![Clean duotone icon of a locked document with three list lines. Used for secure task lists and permissions.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/streamline-duotone/work-office-companies/tasks/task-list-lock-glxnq5s0gfeawpzkl9q5jr.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Task List Lock
- **Type**: Icon
- **Set**: [Ultimate Duotone](/icons/streamline-duotone.md) — Ultimate is the world’s largest icon family, designed by 8 expert designers. The Duotone style enhances visual depth by combining colored lines and filled shapes, perfect for matching brand or project colors. Key advantages: 1—Customizable colors. Apply up to four different colors to icon elements. 2— Adjustable stroke thickness. Create looks ranging from thin to bold for varied aesthetics.
- **Family**: [Ultimate](/icons/ultimate-sets.md) — The encyclopedia of icons
- **Style**: Duo, Stroke, Filled
- **Category**: Work office companies › Tasks
- **Default size**: 24px
- **Stroke width**: 1px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: clipboard, task, list, lock, secured, protection, security, secure, privacy, protected, padlock, confidential, private, notes, document, file, paperwork, encrypted

## Download

- [Download Task List Lock on Streamline](https://www.streamlinehq.com/icons/download/task-list-lock--15873)

## Also available in other styles

- [Task List Lock — Ultimate Colors](/icons/download/task-list-lock--19707.md) (Pro)
- [Task List Lock — Ultimate Bold](/icons/download/task-list-lock--7647.md) (Pro)
- [Task List Lock — Ultimate Regular](/icons/download/task-list-lock--9109.md) (Pro)
- [Task List Lock — Ultimate Light](/icons/download/task-list-lock--8378.md) (Pro)

---

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