SAK Series Fixing Screw for Cross Connection LinksSAK Series fixing screw, for cross-connection link.SAK SeriesTerminals manufactured from polymide 6.6 with a working temperature of -50°C to +100°C except the fused terminal block (425-689) which is high grade melamine with a working temperature of -60°C to +130°C. Asymmetric rail (G-profile) to B 5825:1980 EN 50035 mounting