ShadowDeck™ 80mm Butt-Joint Double Screw Fastener

Seamless Butt-Joints, Every Time

When your decking boards don't run the full length of your deck, you need a fastener that can handle the join. The ShadowDeck™ 80mm Butt-Joint Double Screw Fastener is engineered wider than the standard fastener, specifically designed to span the edge of two boards at once where they meet end-to-end at a butt-joint.

The result? A strong, hidden connection that keeps both boards locked in at the correct height and spacing — with no visible fixings on the surface.

Key Features

• 80mm wide profile — wider than the standard fastener to pick up the edge of two boards simultaneously at a butt-joint
• Double screw fixing — two fixing points provide a secure, stable connection across the joint
• Hidden fastening — maintains the nail-free surface finish of the ShadowDeck™ system
• Maintains consistent 3mm gap — keeps board spacing uniform even at joints
• Works with the full ShadowDeck™ system — compatible with ShadowDeck™ pre-grooved Kwila decking timber

When to Use It

Use the Butt-Joint Double Screw Fastener wherever two decking boards meet end-to-end on a joist. This fastener straddles the joint, securing both board ends in a single fixing — saving time and ensuring a clean, professional finish at every join.

Compatible With

ShadowDeck™ pre-grooved Kwila decking timber and the full ShadowDeck™ fastener range. Refer to our Installation Guide for butt-joint layout guidance.