Product: Stud bolt with left- and right-hand threads and double thread Sizes and compatibility - Thread diameters: M3, M4, M5, M6, M8, M10, M12, M14, M16 - Lengths: 30 to 150 mm (Gesamtschraubenlänge) - Example: M6 x 30 means thread diameter 6 mm and total bolt length 30 mm Key benefits - Dual threading on one stud provides flexible mounting with both left and right hand threads - Enables assembly where components require opposite thread directions on opposite sides - Standard metric threads ensure compatibility with common nuts and tapped holes - Reduces need for separate fasteners and simplifies installation in constrained spaces Applications and use scenarios - Engine or machinery mounting where one side uses a left-hand thread and the other a right-hand thread - Retrofit or repair work in equipment where dual-thread studs streamline alignment and attachment - Frame or bracket assemblies in industrial equipment requiring precise engagement on both ends Notes - Choose the correct diameter and total length (30 to 150 mm) to fit the specific application - Available sizes cover M3 to M16 thread diameters to suit a range of mounting requirements This description retains the original product purpose and specifications while presenting clear, customer friendly details for informed purchasing.