Builders Edge Shutter-Lok patented fastening system makes installation fast and easy. Shutter-Lok holds in any material: Vinyl, stucco, brick, fiber cement. Shutter-Lok features a durable copolymer construction with molded-through color so that there is no paint to ever scratch, flake, or fade. Installation requires drill with 1/4" masonry bit. 12 per bag. No. 050020024001: Length: 3", Type: Fastener/Screws, Material: Copolymer/Vinyl, Style: Shutter-Lok, Color: White No. 050020024002: Length: 3", Type: Fastener/Screws, Material: Copolymer/Vinyl, Style: Shutter-Lok, Color: Black No. 050020024028: Length: 3", Type: Fastener/Screws, Material: Copolymer/Vinyl, Style: Shutter-Lok, Color: Forest Green No. 050020024122: Length: 3", Type: Fastener/Screws, Material: Copolymer/Vinyl, Style: Shutter-Lok, Color: Midnight Green No. 050020024078: Length: 3", Type: Fastener/Screws, Material: Copolymer/Vinyl, Style: Shutter-Lok, Color: Wineberry No. 050020024030: Length: 3", Type: Fastener/Screws, Material: Copolymer/Vinyl, Style: Shutter-Lok, Color: Paintable