# Master Lock 491B – High-Security Padlock for Industrial Use

The **Master Lock 491B Security Lock** is a robust padlock designed for industrial, commercial, and on-site security. A trusted solution from Master Lock, the 491B offers exceptional strength and reliable performance for safeguarding your valuable assets. Its durable construction and pick-resistant mechanism make it perfect for demanding environments.

This high-security padlock features a hardened steel body and boron alloy shackle, providing superior resistance against cutting and tampering. The corrosion-resistant finish ensures long-lasting performance in any weather condition. Ideal for warehouses, job sites, and facility access points, the Master Lock 491B delivers the security you need.

### Key Features

-   **Heavy-duty steel body** resists physical attacks
-   **Pick-resistant locking mechanism** prevents unauthorized access
-   **Weather-resistant finish** ensures durability in harsh conditions
-   **Smooth key action** for reliable daily use
-   **Universal compatibility** with various applications

### Specifications

-   Brand: Master Lock
-   Model: 491B
-   Lock Type: Security Padlock
-   Body Material: Hardened Steel
-   Shackle Material: Hardened Boron Alloy Steel
-   Finish: Corrosion-Resistant Coating
-   Application: Industrial Security, Commercial Facilities, Access Control

The **Master Lock 491B Security Lock** provides dependable protection and rugged performance for your security needs. Trust Master Lock and **Ram Automations** for quality security solutions. Contact us at [info@ramautomations.com](mailto:info@ramautomations.com) for purchase support.

## Details

- **Price:** 999.0 USD
- **Vendor:** Master Lock
- **Type:** Tools & Hardware > Security > Padlocks
- **Tags:** 491B, commercial security, high-security, industrial lock, Master Lock, padlock, security padlock

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 999.00 USD | In stock |

## Images

- Master Lock 491B – High-Security Padlock for Industrial Use-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/master-lock-491b-security-padlock)
> Updated: 2026-09-30