Due to different shapes of tin roof, there are types of standing seam clamps such this easy standing seam clamp.
The HH clamps are mounted onto the tin roof directly without any perforation or drilling, which is remaining the roof without any water-proof problems.
Material clamps: Aluminium anodized AL6005-T5
Material connectors (screws, nuts, washer and spring washer): stainless steel A2-70 (SUS304)