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Four-Pronged Tee Nuts ZP
Product information: M6x9
Product name: DIN1624 Four Claw Tee nut
Surface treatment: zinc plated, blue Zinc
Standard: German standard
Tee Nuts, also known as T-Nuts are available in Steel and Stainless Steel in 3, 4 or 6 prong styles. Featuring prongs to hold them in place in wood or plastic products, tee nuts offer internally threaded barrels which accept screws or bolts to attach items to a surface when inserted into the back end.
http://www.t-nuts.net/