Steel 45mm Outside Diameter Metric M20 Screw Thread Round Die Tool : Amazon.com.au: Home Improvement
ASI 3016920 Multiple Wire Entry Seal for Cable Glands, Type 36A3M2025, 2 Holes with 5 mm Diameter, M20, PG 13.5, PG16, Black (Pack of 100): Amazon.com: Tools & Home Improvement