The MRO Tools K1MSTR K-Series Master Cleco Sheet Metal Fastener Kit offers incredible value. Cleco Fasteners are widely used in automotive, racing, and aircraft sheet metal repair. Cleco Fasteners are spring-loaded and steel bodied fasteners that are designed to temporarily fasten multiple sheets of material together before the pieces are permanently joined and are a simple and inexpensive alternative to competitive fasteners. Cleco Fasteners are available in various lengths and strengths to accommodate different processes. This set includes: 20 Each: K3/32, K1/8, K5/32, K3/16 5 Each: KHD-1/8, KHD-5/32, KHD-3/32, KHD-3/16 5 Each: KK-3/32, KK-5/32, KK-1/8, KK-3/16 5 Each: KSG-3/4×1/2, KSG-3/4×1 1 Each: K200CG CLECO PLIERS