Amazon.com: 2+1 Heavy Duty 304 Stainless Steel Swivel Ring Double Ended Swivel Eye Hook with SUS304 Snap Hooks for Web Tree Swing, Therapy Swing, Aerial Dance, Swing Spinner Hanger, Reliable and Safe (
Cosch Edelstahl End cap with internal thread M8 for square tube (pipe connection 50 x 50 mm) : Amazon.de: DIY & Tools
Solid stainless steel ball, diameter 50 mm, with M8 thread : Amazon.de: DIY & Tools
X-DREE M8 x 1,25 mm 304 Edelstahl Nylon Nylon Sechskantmuttern 25 Stück(M8 x 1.25mm 304 Tuercas de bloqueo hexagonales de nylon de inserción Nylock de acero inoxidable 25pcs : Amazon.de: DIY & Tools