This hanger is perfect for bolting indoor installations, such as gyms, climbing walls, and so on. With an 8 micron layer of EcoTri treatment, it provides greater resistance to corrosion. Also, thanks to the new geometry, it is possible to reduce weight, from the 66g of the older model to the 56g of the new steel hanger with EcoTri treatment. Cat 3 (EN959 : 2018) indoor arid environments Category 3 Steel with EcoTri Treatment weight 56g - 57g 3. 5 mm sheet stock, 25kN