---
title: "Lock Icon | Free Download PNG & SVG | Ultimate Bold"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/lock--7533
canonical_url: "https://www.streamlinehq.com/icons/download/lock--7533"
summary: "Bold solid icon of a padlock within four corner brackets. Used for security, privacy, and locked content."
---

# Lock icon

The Lock icon shows a rounded padlock centered within four corner brackets. Drawn in the solid style on a 24px grid so its bold filled shapes remain highly legible. Use it for security controls, privacy settings, protected content, authentication screens, and access-restricted interfaces. It belongs to Ultimate Bold set in the Ultimate family.

## Preview

![Bold solid icon of a padlock within four corner brackets. Used for security, privacy, and locked content.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/lock-unlock/lock-yvg3r9ogkx9mpkviqbm2vg.png/lock-zb9lkyjgjafrw9jk4zqcjp.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Lock
- **Type**: Icon
- **Set**: [Ultimate Bold](/icons/streamline-bold.md) — Bold style features strong, solid shapes for instant recognition. It gives excellent legibility on dark backgrounds.
- **Family**: [Ultimate](/icons/ultimate-sets.md) — The encyclopedia of icons
- **Style**: Solid, Filled, Bold, Glyph
- **Category**: Interface Essential › Lock Unlock
- **Default size**: 24px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: lock, security, padlock, secure, privacy, locked, encryption, password, protected, authentication

## Download

- [Download Lock on Streamline](https://www.streamlinehq.com/icons/download/lock--7533)

## Also available in other styles

- [Lock — Ultimate Colors](/icons/download/lock--19594.md) (Pro)
- [Lock — Ultimate Duotone](/icons/download/lock--15799.md) (Pro)
- [Lock — Ultimate Regular](/icons/download/lock--8995.md) (Pro)
- [Lock — Ultimate Light](/icons/download/lock--8264.md) (Pro)

---

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