Model: 2020 N1 V Slot Aluminum Extrusion Profile. One flat surface profile. Material: Aluminum 6063-T5 Finish: Anodize Original, Anodize Black Measurement System: Metric/Imperial, Europe Standard Length: Multiple, Customizable PCs in Item: 1 PC Manufacture Information: Industrial Aluminum Alloy, China Note: Aluminum Profile Tapping service is also available. See options. Metric standard tapping on extrusion end-side, thread size will be based on extrusion profile.