Catalog number: D-KN-20 Features: ●When tightening the nut, the friction ring presses firmly against the threads, providing a high level of anti-loosening effect. ●The handling method is the same as for normal nuts, so no special tools are required. Applications: ●Roads, railways, and other locations that are constantly vibrating ●Ceiling suspension bolts, ceiling racks ●Installation of cable support brackets Specifications: ●Nominal diameter: M20 x 2.50 ●Dimensions (mm) e: 34.6 ●Dimensions (mm) l: 17.5 ●Dimensions (mm) s: 30 ●Number of pieces per box: 40 ●s dimensions ●Complies with tests conforming to the US aerospace standards NAS3350 and NAS3354 ●Boxed Material/Finish: ●Steel ●Surface treatment: Hot-dip galvanized finish
