These high-quality aeco ASP-1931R spade plugs, sold in packs of 4, benefit from a rigorous design using top-of-the-range materials. The contacts, waved for better connection, are made of 99.9% pure copper with rhodium plating, ensuring both excellent conductivity and perfect resistance to oxidation. The insulation is made of fibreglass-reinforced nylon, and the outer shell is made of stainless steel for durability. The forks have a structure that allows them to be completely dismantled for easy welding. They can also be assembled using a practical screw system. The forks also accept cables up to Ø6.5mm in diameter, which are held in place by two screws.