Feature * brand new and high quality *High quality stainless steel pole screws M10x200/250mm, suitable for mounting solar photovoltaic systems *Height adjustable, with hexagonal drive SW7, completely pre-assembled and incl. weather- and UV-resistant EPDM seal and locking tooth nuts *For mounting on the roof to mount your aluminium profile rails, on which the solar modules/photovoltaic systems are then attached. *For mounting on sheet metal or corrugated roofs, as well as for wall mounting with rear ventilation. *The sizes of the groove stone are as pictured, please check before buying if your rail size is suitable. Details: *Material: aluminium alloy+stainless steel *Size: Diameter: 10mmLength: 200mm250mm(As Pictures Show) *Color: sliver *Quantity: 4 sets Package Contents: 4Pcs 200/250mm pole screws with L adapter plate Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.1 * Refillable Adapter (Adapter only, cylinder not included, handwheel color random _x000D_