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Jack Nut

Jack Nuts are collapsible blind fasteners designed for use in thin or soft materials such as sheet metal, plastic, and composites. When tightened, their slotted body collapses to form legs that grip behind the material, distributing load and preventing pull-out. They are manufactured to ASTM and DIN references and available in carbon steel, stainless steel, and brass. Jack Nuts are easy to install with common hand tools and do not require special equipment. They are widely used in automotive, electrical enclosures, HVAC, furniture, and light construction applications.