Check the listing for details. K2 Systems Solar Speedclip / K2 Basicclip 12Pack. Color: Black, Condition: New. Listed at 19.99 USD. Buying A 12 Pack K2 BASICCLIPK2 SYSTEMSBasicClip for direct mounting the K2 BasicRail on trapezoidal sheet metal.Note: for each BasicClip you need 2x thread-forming screws 6x38Please look at the pictures to make sure is something you are looking for thanks. Technische Daten SpeedRail / SpeedClip Scope of application Trapezoidal sheet roof Fastening type / roof fixture Insertion mounting into SpeedClips and screws in the roofing Requirements Δ Sheet thickness: ≥ 0.4mm steel or ≥ 0.5mm aluminium Δ Sandwich panel: Approval from manufacturer required Δ Crest width: At least 22mm Δ Flush area surrounding the bore hole: Ø ≥ 20mm Material Δ SpeedRail: Aluminium (EN AW-6063 T66; 0.64kg/m) Δ SpeedClip: Glass fibre reinforced polyamide with EPDM SpeedRail dimensions W = width [mm] H = height [mm] L = lengths [m] 63 22.5 2.25/3.30/4.40/5.50m SpeedClip dimensions See drawing on the last picture Second rail layer SingleRail or SolidRail