One-Touch Quarter-Turn Fasteners are designed for quick changeover applications and frequent disassembly. These locking fasteners provide quick and easy locking and unlocking for fixture plates, panels, covers, machine components, and more -- without the use of tools. Choose from a variety of Quarter-Turn fastener types to fit your needs, including heavy duty, low profile, retractable and knob locking. Stainless steel and plastic knobs are both available.