---
product_id: 70698964
title: "Hilti Firestop Block CFS-BL"
brand: "hilti"
price: "€ 111.89"
currency: EUR
in_stock: true
reviews_count: 3
category: "Hilti"
url: https://www.desertcart.at/products/70698964-hilti-firestop-block-cfs-bl
store_origin: AT
region: Austria
---

# Compact 7.87 x 5.11 x 1.96 in UL 1479 & FM Approved Firestop Grade CFS Ultimate Protection Hilti Firestop Block CFS-BL

**Brand:** hilti
**Price:** € 111.89
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal with Hilti’s ultimate firestop block!

## Quick Answers

- **What is this?** Hilti Firestop Block CFS-BL by hilti
- **How much does it cost?** € 111.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/70698964-hilti-firestop-block-cfs-bl)

## Best For

- hilti enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Installation:** Hex head firestop bolts and compatible with 5-inch groove diameters ensure quick, secure fitting.
- • **Precision Compact Design:** Optimized dimensions (200 x 130 x 50 mm) for seamless integration in tight construction spaces.
- • **Trusted Brand Reliability:** Hilti’s industry-leading standards guarantee compliance and peace of mind on every project.
- • **Professional Grade Durability:** Constructed with cementitious material and stainless steel fasteners for long-lasting performance.
- • **Certified Fire Safety Assurance:** UL 1479, cULus Listed, FM Approved, and CE Marked for top-tier firestop reliability.

## Overview

The Hilti Firestop Block CFS-BL is a compact, UL 1479 and FM Approved firestop solution designed for professional-grade fire protection. Measuring 7.87 x 5.11 x 1.96 inches, it features durable cementitious material and stainless steel fasteners, ensuring reliable performance and easy installation in construction projects requiring certified fire safety compliance.

## Description

Hilti 2030020 FIRESTOP-BLOCK-CFS-BL Firestop Block

Review: Not what I needed I didn't work for me it's - It didn't work for what we needed it not moldable. Probably more I me .I returned it and was very happy how fast they took care of my refund 5 stars to them for that
Review: Fire marshal approved - Just I was going looking for!

## Features

- Firestop Block
- LxWxH: 7.87 x 5.11 x 1.96 in. (200 x 130 x 50mm)
- UL 1479, cULus Listed, FM Approved, CE Marked

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MT7UWCF |
| Brand | HILTI |
| Color | Red |
| Compatible Groove Diameter | 5 Inches |
| Customer Reviews | 3.7 3.7 out of 5 stars (9) |
| Drive System | Firestop Bolt |
| Exterior Finish | Gray coating or material |
| Fastener Size | 1/2 inch |
| Fastener Type | Firestop Bolt |
| Finish Types | Professional Grade |
| Grade Rating | Ultimate |
| Head Type | Hex |
| Item Diameter | 5 Inches |
| Item Dimensions | 5.38 x 7.88 x 2 inches |
| Item Hardness | Grade 10.9 |
| Item Weight | 0.78 Pounds |
| Manufacturer | Hilti |
| Manufacturer Grade | Grade CFS |
| Material Type | Cementitious Material |
| Metal Type | Stainless Steel |
| Model | CFS-BL |
| Number of Pieces | 1 |
| Part Number | CFS-BL |
| Screw Head Style | Hex |
| Set Name | Single |
| Set Screw Thread Type | Unified National Fine (UNF) |
| Size Name | 1/2 inch |
| Thread Class | 3A |
| Thread Coverage | Unthreaded |
| Thread Size | 1/2 inch |
| Thread Style | Unthreaded |
| Thread Type | Unf |
| Unit Count | 1.0 Count |

## Product Details

- **Exterior Finish:** Gray coating or material
- **Head Style:** Hex
- **Manufacturer Grade:** Grade CFS
- **Material:** Cementitious Material
- **Thread Size:** 1/2 inch

## Images

![Hilti Firestop Block CFS-BL - Image 1](https://m.media-amazon.com/images/I/81pVFDz6OQL.jpg)

## Questions & Answers

**Q: Why does the product description say "comprised" where it should have said "composed?"**
A: amazon mistake they  describe the item

## Customer Reviews

### ⭐⭐⭐⭐ Not what I needed I didn't work for me it's
*by P***Y on September 29, 2022*

It didn't work for what we needed it not moldable. Probably more I me .I returned it and was very happy how fast they took care of my refund 5 stars to them for that

### ⭐⭐⭐⭐⭐ Fire marshal approved
*by M***. on January 12, 2020*

Just I was going looking for!

### ⭐⭐⭐⭐⭐ Used this item for reselling.
*by M***E on March 4, 2021*

Very fine quality our customers are very happy and satisfied. Quality branded recommended to every one, This specially make very fine quality products.

## Frequently Bought Together

- Hilti Firestop Block CFS-BL
- HIlti 2101531 FS-ONE MAX 10.1oz Tube (1 Tube) firestop fire Protection Systems

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-05-05*