Myard Universal Hidden Deck Fastener Clips for Grooved Edges of Composite Decking Boards to Joists, 1/4" Gap Spacing, with Square Driver Bit (100-Pack) - - Amazon.com
Hidden Clips Systems | Composite Deck Hidden Fasteners - Techwoodn
NewTechWood Plastic Clip Hidden Fastener System 1-in x 2-in x 1-ft Black Grooved Composite Deck Board in the Composite Deck Boards department at Lowes.com