---
title: "Lock 4 Icon | Free Download PNG & SVG | Ultimate Light"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/lock-4--8264
canonical_url: "https://www.streamlinehq.com/icons/download/lock-4--8264"
summary: "Clean line icon of a padlock with a circular keyhole. Used for security, privacy, and locked states."
---

# Lock 4 icon

The Lock 4 icon shows a rounded padlock with a circular body, arched shackle, and keyhole. Drawn in the line style on a 24px grid with a 1px stroke for airy clarity at small sizes. Use it for security controls, privacy settings, locked content, authentication screens, and access-restricted states. It belongs to Ultimate Light set in the Ultimate family.

## Preview

![Clean line icon of a padlock with a circular keyhole. Used for security, privacy, and locked states.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/streamline-light/interface-essential/lock-unlock/lock-4-s2s0ic96qx5ex1dodsjf7.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Lock 4
- **Type**: Icon
- **Set**: [Ultimate Light](/icons/streamline-light.md) — Designed by 8 expert designers. Light style features 1px stroke with intricate details, airy design, and generous spacing. Perfect for UI and illustrative elements.
- **Family**: [Ultimate](/icons/ultimate-sets.md) — The encyclopedia of icons
- **Style**: Line, Light, Stroke
- **Category**: Interface Essential › Lock Unlock
- **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**: lock, locked, unlock, keyhole, secure, security, padlock, protection, safety, privacy, guard, safeguard, encrypted, password, combo, key, lock unlock, combination, circle, round

## Download

- [Download Lock 4 on Streamline](https://www.streamlinehq.com/icons/download/lock-4--8264)

## 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 Bold](/icons/download/lock-4--7533.md) (Pro)

---

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