DIN 985ISO 10511Prevailing torque with polymide (nylon) insert ring Click Here for Technical Data SheetM42 Nylon Insert Hex Lock Nuts$20.55PriceMaterial*SelectQuantity*SelectQuantity*Call us toll-free at 1-800-638-7421Request a quoteAvailable Materials Class 6 Steel Class 8 Steel Class 10 Steel A2 Stainless Steel A4 Stainless Steel Brass Available Finish Zinc Yellow Zinc