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Item #:
10629746
Hilti Firestop Block CFS-BL
78% of respondents would recommend this to a friend
Item #:
10629746
PYG 554364
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Protect electrical outlet and switch boxes from the passage of flames, toxic gases, smoke and temperature with HiltiFirestop Block
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Product Details
| Thread Size | 1/2 inch |
| Exterior Finish | Gray coating or material |
| Manufacturer Grade | Grade CFS |
| Screw Head Style | Hex |
| Color | Red |
| Fastener Type | Firestop Bolt |
| Thread Type | Unf |
| Thread Style | Unthreaded |
| Item Hardness | Grade 10.9 |
| Head Type | Hex |
| Thread Class | 3A |
| Compatible Groove Diameter | 5 inches |
| Drive System | Firestop Bolt |
| Grade Rating | Ultimate |
| Set Screw Thread Type | Unified National Fine (UNF) |
| Material Type | Cementitious Material |
| Metal Type | Stainless Steel |
| Finish Types | Professional Grade |
| Size Name | 1/2 inch |
| Number of Pieces | 1 |
| Fastener Size | 1/2 inch |
| Thread Coverage | Unthreaded |
| Item Dimensions | 5.38 x 7.88 x 2 inches (13.7 x 20 x 5.1 cm) |
| Item Weight | 12.48 ounces (353.81 grams) |
| Brand | HILTI |
| Number of Packs | 1 |
| Set Name | Single |
| Unit Count | 1 Count |
| Manufacturer | Hilti |
| Number Of Items | 1 |
| Model | CFS-BL |
| Part Number | CFS-BL |
| Material | Cementitious Material |
| Head Style | Hex |
Product Description
About This Item
Introducing the Hilti Firestop Block CFS-BL for Unmatched Building Safety Ensure the utmost safety in your commercial and residential applications with the Hilti Firestop Block CFS-BL. Designed to protect electrical outlet and switch boxes from flames, toxic gases, smoke, and extreme temperatures, this firestop block is an essential addition to any construction project. Constructed from moldable firestop putty, the Hilti Firestop Block CFS-BL is engineered with precision to provide superior fire protection. With its advanced technology, this firestop block acts as a barrier, preventing the passage of fire and smoke, thus minimizing the potential for damage and danger. As a trusted name in the industry, Hilti is renowned for its innovative firestop solutions.
The CFS-BL firestop block is no exception. With its exceptional strength and durability, this versatile block offers reliable protection for commercial buildings, industrial applications, and all construction projects. Incorporating Hilti firestop materials into your building plan ensures compliance with safety regulations and delivers peace of mind. By utilizing the CFS-BL firestop block, you can safeguard your property, assets, and most importantly, lives. Don't compromise on safety.
Choose Hilti's CFS-BL firestop block – the perfect choice for passive fire protection. Shop now and experience the unmatched quality and performance of Hilti firestop accessories. Keywords: Hilti Firestop Block, CFS-BL, firestop block for construction, Firestop block for building safety, Hilti firestop solutions, Firestop block for fire safety, Hilti firestop materials, firestop block for passive fire protection, Hilti firestop accessories, Firestop block for commercial buildings, Hilti firestop technology, Hilti CFS-BL block for fire protection, Firestop block for industrial applications, Hilti firestop systems, Firestop block for construction projects, Hilti firestop applications.
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HILTI Editorial Review
Hilti Firestop Block CFS-BL features a 1/2 inch thread size and is made from high-quality cementitious material, offering a durable solution for firestop applications. Customers have praised its fine quality, noting high satisfaction levels, while some mentioned limitations in moldability. The product is designed with a professional-grade finish and compatibility with a 5-inch groove diameter, making it a reliable choice for various projects. As per user experience, the fast return process was commendable, indicating good customer service support during purchasing issues.
Customer Reviews & Ratings
9 customers ratings
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5 Star
34%
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4 Star
36%
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3 Star
14%
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2 Star
0%
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1 Star
16%
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Pros
- High-quality cementitious material
- Compatible with 5-inch groove diameter
- Professional-grade finish for durability
- Quick refund process appreciated by customers
- Recommended for its fine quality
Cons
- Limited moldability may not suit all needs
Platform Trust & Buyer Confidence
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Mona
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“Everything was efficient and fast. ”
05 November 2026 · via Trustpilot
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Music
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05 November 2026 · via Trustpilot
WF
William
Verified buyer
“I can't fault this purchase. Had a scarce part i needed, cheaper than i could source it in the UK, ordered and was followed up with great communication and speedy delivery of a very well packaged part.”
06 November 2026 · via Trustpilot
A
Andrew
Verified buyer
“Fast delivery, good and secure packaging, everything was fine and with no problems.”
06 November, 2026 · via Trustpilot
SM
Stephen
Verified buyer
“I am very happy with my insoles purchase, they make my work boots very comfortable and soft to walk on and even mitigate the vibration from driving the truck all day. I would highly recommend this company for online purchases, reliability of product delivery and value for money.”
07 November 2026 · via Trustpilot
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PYG 554364
Order now and get it around Thursday, November 26
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Only 5 items left in stock.
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Features & Benefits
- Firestop putty blocks for both commercial and residential use.
- Moldable putty design for easy installation.
- Designed to protect electrical boxes from fire hazards.
- Can stop flames, gases, and smoke from spreading.
- Sized at approximately 8 x 5.25 inches.
- Commonly used for fire-stopping electrical boxes in fire-resistive walls.
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