---
title: "Lock 4 Icon | Free Download PNG & SVG | Ultimate Bold"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/lock-4--7533
canonical_url: "https://www.streamlinehq.com/icons/download/lock-4--7533"
summary: "Bold solid icon of a padlock with a rounded shackle and keyhole. Used for security, privacy, and locked states."
---

# Lock 4 icon

The Lock 4 icon shows a rounded padlock with a curved shackle, circular body, and centered keyhole. Drawn in the solid style on a 24px grid with bold filled shapes so it stays highly legible at small sizes. Use it for security controls, privacy settings, locked content, authentication screens, and access states. It belongs to Ultimate Bold set in the Ultimate family.

## Preview

![Bold solid icon of a padlock with a rounded shackle and keyhole. Used for security, privacy, and locked states.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/lock-unlock/lock-4-vgtuqpjm8cicpd2z29vhlq.png/lock-4-dass8uulcjs7mghjn70vbd.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Lock 4
- **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, padlock, security, locked, privacy, password, keyhole, protection, encryption, authentication

## Download

- [Download Lock 4 on Streamline](https://www.streamlinehq.com/icons/download/lock-4--7533)

## Also available in other styles

- [Lock 4 — Ultimate Colors](/icons/download/lock-4--19594.md) (Pro)
- [Lock 4 — Ultimate Duotone](/icons/download/lock-4--15799.md) (Pro)
- [Lock 4 — Ultimate Regular](/icons/download/lock-4--8995.md) (Pro)
- [Lock 4 — Ultimate Light](/icons/download/lock-4--8264.md) (Pro)

---

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