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Close-up of wooden boards joined by a black plastic connector with a screw.

BLACK CLIP™ INSTALLATION GUIDE

With the BLACK CLIP™ fastening system, no stress is applied to the wood fibers. The boards retain their full strength, while their natural movement is absorbed without causing damage.

The result: An invisible, durable, and elegant fastening solution.

see INSTALLATION METHOD

STEP 1:

STEP 1:

STEP 1:

The first decking board must be traditionally screwed into place on our HEFTY BLACK BEARERS™.

STEP 2:

STEP 1:

STEP 1:

Insert the BLACK CLIP™  into the groove and drill at a 45° angle. Screw until it is firmly secured.

STEP 3:

STEP 3:

STEP 3:

Mark the fixing points and create the required grooves using a biscuit joiner. Place the next decking board into position.

STEP 4:

STEP 3:

STEP 3:

Repeat the process board by board until the entire decking surface is securely installed.

BLACK CLIP™ SCREW - TECHNICAL FEATURES

The BLACK CLIP™ SCREW is engineered for high-performance outdoor decking applications, featuring a 40 mm length and a 5 mm Torx drive for powerful, precise fastening. Its dimensions and tapered geometry are specifically designed to work seamlessly with the BLACK CLIP™  system, ensuring deep anchoring, reduced wood splitting, and a secure, long-lasting invisible installation.

TORX HEAD

Self-Drilling Screw – Type 17

Self-Drilling Screw – Type 17

Provides strong torque transfer with no cam-out or slipping. Improves tool lifespan and reduces damage to the screw head during installation.

Self-Drilling Screw – Type 17

Self-Drilling Screw – Type 17

Self-Drilling Screw – Type 17

Tapered design helps prevent wood splitting and ensures a smooth, controlled drive into the material.
Allows quick, efficient installation with minimal need for pre-drilling.

Deep Thread Profile

Self-Drilling Screw – Type 17

Deep Thread Profile

Engineered with a deep thread profile that  penetrates and locks securely into timber, ensuring exceptional grip, reduced movement and lasting structural reliability.

EXTERIOR

Self-Drilling Screw – Type 17

Deep Thread Profile

Designed for outdoor applications, offering reliable performance in different weather conditions.

PRODUCT RESOURCES
Download the BLACK CLIP™ SCREW technical guide for detailed specifications.

HEFTY FASTENERS_SCREWS_EN (pdf)

Download

HEFTY FASTENERS_VIS_FR (pdf)

Download

BUILT FOR PERFORMANCE. INVISIBLE FASTENING. TROPICAL RESISTANCE

    If our BLACK CLIP™ sparked your interest,

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