... .1,Gr.2,BS 4,6,8,10,12 Nylon Insert Nut1:We produce nuts according to UIC, GOST, GB/TB ... ,or customers required 6:Protection: Plain (oiled), Hot dip galvanized, White zinc plated, Yellow zinc plated, Black, Dacromet, Geomet or others ... , West Europe, North Europe, Middle Asia, Southeast of Asia. Nylon Insert Nuts