---
product_id: 70698964
title: "Hilti Firestop Block CFS-BL"
brand: "hilti"
price: "Bs.1575"
currency: BOB
in_stock: true
reviews_count: 3
category: "Hilti"
url: https://www.desertcart.bo/products/70698964-hilti-firestop-block-cfs-bl
store_origin: BO
region: Bolivia
---

# Compact 7.87 x 5.11 x 1.96 in size UL 1479 & FM Approved firestop rating Durable cementitious material with gray finish Hilti Firestop Block CFS-BL

**Brand:** hilti
**Price:** Bs.1575
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal with Hilti’s firestop block – safety that stands out!

## Quick Answers

- **What is this?** Hilti Firestop Block CFS-BL by hilti
- **How much does it cost?** Bs.1575 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/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

- • **Easy Installation:** Designed for quick, reliable firestop bolt fastening with hex head compatibility
- • **Robust Durability:** Crafted from high-grade cementitious material with protective gray coating
- • **Space-Smart Dimensions:** Compact block size fits seamlessly into tight construction joints
- • **Trusted Brand Assurance:** Hilti’s industry-leading quality ensures compliance and peace of mind
- • **Certified Fire Protection:** Meets UL 1479, cULus, FM, and CE standards for trusted firestop performance

## Overview

The Hilti Firestop Block CFS-BL is a compact, UL 1479 and FM approved firestop solution designed to provide reliable fire resistance in building joints. Made from durable cementitious material with a protective gray finish, it ensures robust performance and easy installation with firestop bolt compatibility. Trusted by professionals, this block meets multiple international safety standards, making it an essential component for compliant, fire-safe construction.

## 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 |
| Date First Available | January 10, 2017 |
| Exterior Finish | Gray coating or material |
| Fastener Type | Firestop Bolt |
| Head Style | Hex |
| Head Type | Hex |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 5 Inches |
| Item Hardness | Grade 10.9 |
| Item Weight | 12.5 ounces |
| Item model number | CFS-BL |
| Manufacturer | Hilti |
| Manufacturer Grade | Grade CFS |
| Material | Cementitious Material |
| Metal Type | Stainless Steel |
| Number of Pieces | 1 |
| Set Name | Single |
| Size | 1/2 inch |
| Thread Class | 3A |
| Thread Size | 1/2 inch |
| Thread Style | Unthreaded |
| Thread Type | Unf |

## 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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**Shop now:** [https://www.desertcart.bo/products/70698964-hilti-firestop-block-cfs-bl](https://www.desertcart.bo/products/70698964-hilti-firestop-block-cfs-bl)

---

*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-03-08*