Builders Edge 166 Midnight Blue Shutter Lok Fasteners (12-Pack)

Shutter-Lok patented fastening system makes installation fast and easy. Holds in any material: vinyl, stucco, brick, fiber cement. Durable copolymer construction features molded-through color so that there is no paint to ever scratch, flake, or fade. Requires drill with 1/4 in. masonry bit. Polypropylene/polystyrene.