---
product_id: 48736745
title: "Penetrant Spray, Loosens Rust on Nuts, Bolt & Locks, 400ml"
brand: "wd-40 specialist"
price: "314 kr"
currency: NOK
in_stock: true
category: "Wd 40 Specialist"
url: https://www.desertcart.no/products/48736745-penetrant-spray-loosens-rust-on-nuts-bolt-and-locks-400ml
store_origin: NO
region: Norway
---

# Smart Straw for precise spray Works from -20°C to +90°C Penetrates rusted bolts fast Penetrant Spray, Loosens Rust on Nuts, Bolt & Locks, 400ml

**Brand:** wd-40 specialist
**Price:** 314 kr
**Availability:** ✅ In Stock

## Summary

> 🛠️ Rust doesn’t stand a chance — unlock, protect, and conquer with WD-40 Specialist!

## Quick Answers

- **What is this?** Penetrant Spray, Loosens Rust on Nuts, Bolt & Locks, 400ml by wd-40 specialist
- **How much does it cost?** 314 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/48736745-penetrant-spray-loosens-rust-on-nuts-bolt-and-locks-400ml)

## Best For

- wd-40 specialist enthusiasts

## Why This Product

- Trusted wd-40 specialist brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Weather Reliability:** Performs flawlessly from freezing cold to scorching heat (-20°C to +90°C).
- • **Precision Spray Control:** Integrated Smart Straw delivers pinpoint accuracy or broad coverage with 360° valve.
- • **Engineered for Professionals:** Trusted by mechanics and engineers for consistent, industrial-strength performance.
- • **Long-Lasting Corrosion Defense:** Leaves a water-resistant barrier protecting metal, rubber, and plastic surfaces.
- • **Unlock Rusted Joints Instantly:** Penetrates deep to free seized bolts, nuts, and fixings where others fail.

## Overview

WD-40 Specialist Penetrant Spray is a professional-grade lubricant designed to rapidly free rusted and seized parts. Its low surface tension formula penetrates deep into corroded joints, working effectively on metal, stainless steel, titanium, rubber, plastic, and PVC. Operating reliably across a wide temperature range (-20°C to +90°C), it also deposits a water-resistant barrier to prevent future rust and corrosion. Featuring a precision Smart Straw and 360° spray valve, it ensures targeted application and minimal waste, making it the go-to choice for automotive, marine, and industrial professionals.

## Description

This professional-grade penetrant spray frees stuck parts, removes rust, and provides long-lasting lubrication. Ideal for automotive, marine, and industrial use.

## Features

- Causes skin irritation.
- Extremely flammable aerosol.
- May be fatal if swallowed and enters airways.
- May cause drowsiness or dizziness.
- Pressurised container: May burst if heated.
- Toxic to aquatic life with long lasting effects.
- Penetrating Oil for Rust: The low surface tension formula penetrates deep into rusted threads and corroded joints, rapidly freeing seized bolts, nuts, and fixings where general-purpose sprays fail, the professional's choice from WD-40 Specialist.
- Multi-Surface Rust Release: Loosens rusted hinges, stuck locks, and stiff chains while safe for use on metal, stainless steel, titanium, rubber, plastic, and PVC, performing reliably from -20°C to +90°C.
- Lasting Corrosion Protection: Deposits a water-resistant barrier that delivers anti-rust and corrosion protection to guard bearings, pipes, conveyor belts, and exposed fixings against future build-up to extend service intervals between maintenance.
- Professional-Grade Performance: Engineered for mechanics, engineers, and professionals who demand consistent results, this industrial-strength penetrating spray operates across a wide temperature range for workshop, garage, and field applications.
- Precision Smart Straw Control: Reach tight spaces and awkward angles with the integrated Smart Straw for pinpoint accuracy, or flip down for broad coverage, the 360° valve enables spraying in any orientation, reducing product waste and time.
- Specialist Maintenance System: Pre-clean with WD-40 Specialist Degreaser spray, apply Penetrant spray to free seized components, then protect with White Lithium Grease for lasting lubrication, or add Cutting Oil for drilling and metalwork.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006UCJ5NU |
| Best Sellers Rank | 702 in DIY & Tools ( See Top 100 in DIY & Tools ) 8 in Lubricants |
| Brand Name | WD-40 Specialist |
| Compatible Material | metal,stainless steel,titanium,rubber,plastic,PVC |
| Container Type | Tin |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,224) |
| Flash Point | 44 Degrees Celsius |
| Global Trade Identification Number | 05032227443488 |
| Included Components | 1 x WD40 Specialist Penetrant Aerosol 400Ml |
| Item Form | liquid |
| Item Highlight | Rust Penetrating Oil Spray, Smart Straw, Quickly Loosens All Stuck, Seized & Rusted, For Corroded Nuts, Bolts, Hinges & Locks |
| Item Type Name | Specialist Fast Release Penetrant with Smart Straw 400 ml |
| Item Weight | 374 Grams |
| Liquid Volume | 0.4 Litres |
| Manufacturer | WD-40 Company |
| Material | Grease, Metal, Plastic |
| Model Number | 7780195-HHW |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 443488-BPSSA02589 |
| Product Warranty | Na. |
| Recommended Uses For Product | Automotive, Marine, Industrial, Nuts, Bolts, Screws, Locks, Pipes, Taps |
| SAE J300 Viscosity Grade | 0W |
| Specific Uses For Product | Car,Wheel,Window |
| UPC | 013523004028 616268302482 |
| Unit Count | 400.0 millilitre |
| Upper Temperature Rating | 90 Degrees Celsius |
| Viscosity | 0w |

## Product Details

- **Brand:** WD-40 Specialist
- **Item weight:** 374 Grams
- **Liquid volume:** 0.4 Litres
- **Material:** Grease, Metal, Plastic
- **Package information:** Tin

## Images

![Penetrant Spray, Loosens Rust on Nuts, Bolt & Locks, 400ml - Image 1](https://m.media-amazon.com/images/I/61gRmO22SaL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- WD-40 Specialist Penetrant Spray - Professional-Grade Lubrication for Mechanics and Industrial Applications - 400ml - Rust-Busting Formula
- WD-40 Specialist Silicone Spray Lubricant 400ml Can - Versatile All-Weather Protection for Extended Tool Life, Repels Moisture, Dust, and Grime - Smart Straw Applicator Included
- WD-40 Multi-Use Smart Straw 450ml Spray Aerosol Can Clean Rust Lubricant, blue

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**Shop now:** [https://www.desertcart.no/products/48736745-penetrant-spray-loosens-rust-on-nuts-bolt-and-locks-400ml](https://www.desertcart.no/products/48736745-penetrant-spray-loosens-rust-on-nuts-bolt-and-locks-400ml)

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-09-16*