Glands - IP68. Made in AISI 303 (X8CrNi1809 1.4305 UNI EN10088-1) stainless steel, the Perbunan seal forms a barrier effect against radioactive radiation of up to 2.5x105 Grays. Starting with PG09, it has been produced in two pieces to guarantee improved tightening and to reduce the gap between the cable and the metal parts of the gland. They offer excellent resistance to cable traction and have an IP68 rating. Suggested threads are: ISO metric in accordance with CEI EN 60423.