Schluter Kerdi Board Coarse Thread Screw 3 Inch Length 100-Pack

Description

Product Overview

The Schluter Kerdi Board Coarse Thread Screw (model KBZS75G) is engineered specifically for fastening Kerdi‑Board panels to stud framing. Constructed from high‑grade alloy steel, each 3‑inch screw features a flat head that sits flush with the board surface, preventing any protrusion that could interfere with tile installation. The coarse thread design delivers superior pull‑out resistance, ensuring that the waterproofing membrane remains securely attached over the life of the project. Packaged in a convenient 100‑piece box, the screws are ready for immediate use on both wood and metal studs, making them an essential component for any tile‑backer system.

Usage

These screws are ideal for residential bathroom remodels, commercial shower installations, and any application where Kerdi‑Board is used as a waterproofing substrate. Installers can rely on the 12‑inch (30 cm) on‑center spacing recommendation to achieve uniform load distribution across the panel, which helps prevent cracking or movement of the finished tile surface. The screws are compatible with the Schluter Kerdi‑Board‑ZT washers, which spread the holding force and protect the board from damage. Whether you are working on a new construction project or a retrofit, the 3‑inch length provides deep penetration into standard 2×4 or 2×6 framing, delivering a robust connection that meets industry standards.

Why Choose Us

Choosing Schluter means selecting a brand with a reputation for quality and reliability in the tile‑and‑waterproofing industry. Each screw undergoes rigorous testing to verify its tensile strength, corrosion resistance, and thread integrity. The alloy steel material is coated to resist rust, ensuring long‑term performance even in high‑humidity environments. Additionally, the product is backed by a 10‑year limited warranty that covers manufacturing defects when installed according to the Schluter Installation Handbook and Technical Data Sheet. Our dedicated technical support team is available to assist with installation questions, and we provide comprehensive documentation to help you achieve flawless results.

Key Features

• Secure attachment – coarse thread design guarantees strong hold on wood or metal studs.
• Durable alloy steel – corrosion‑resistant material ensures longevity in wet environments.
• Flat head profile – sits flush with Kerdi‑Board, eliminating surface irregularities.
• Versatile 3‑inch length – provides deep penetration for reliable fastening across framing types.
• Comprehensive support – 10‑year limited warranty and expert technical assistance.

FAQ

What type of studs can I use these screws with?

The screws are designed for both wood and metal studs. The coarse thread and 3‑inch length allow for deep penetration into standard 2×4 or 2×6 framing, delivering a secure connection regardless of the stud material.

Do I need a special washer when installing these screws?

While the screws can be used on their own, Schluter recommends pairing them with the Kerdi‑Board‑ZT washers. The washers distribute the holding force evenly across the board, reducing the risk of damage and improving overall stability.

How often should I space the screws when installing Kerdi‑Board?

Schluter advises a 12‑inch (30 cm) on‑center spacing for optimal load distribution. This spacing helps maintain a flat, even surface and supports the long‑term durability of the waterproofing system.

Is there a warranty on these screws?

Yes. The screws come with a 10‑year limited warranty that covers manufacturing defects when installed according to Schluter’s guidelines. This warranty reflects the confidence Schluter has in the product’s performance.

Can these screws be used for outdoor applications?

While the screws are primarily intended for interior waterproofing systems, the alloy steel construction and corrosion‑resistant coating make them suitable for exterior applications where the board is protected from direct exposure to the elements.