Sliding nut with fixing aid, for C-anchor rails, for precise fixing without slipping, especially in vertical applications, the sliding nut is screwed 90° into the profile using the fixing aid and can be variably positioned by pressing, can be used at any point in the profile. Use for: anchor rails/profile rails 2985, 2986, 2988 and 2990 with 18 mm slot width Dimensions (approx. dimensions) Length L: 50 mm Width B: 21 mm Sliding nut height H: 17 mm Thread: M 10 Strength class: 8 Sliding nut material: steel, hot-dip galvanized in accordance with DIN EN ISO 1461/10684 Fixing aid material: grey polyamide (PA), halogen-free