Carbon Steel Zinc Plating M20*130 Chemical Anchor with Internal Thread. Extensive Material Options: Available in Carbon Steel, Stainless Steel, and High Tensile Steel. Multiple Surface Finishes: Options include Zinc Plated, Hot DIP Galvanized, Yellow, Blue, and White. Wide Size Range: Sizes available from M8 to M30 with various lengths up to 380mm. High Grade Standards: Grades 4.8, 5.6, 6.8, 8.8, 10.9, 12.9, A2-70, and A4-80 available. International Standard Compliance: Meets ISO, DIN, ANSI, ASTM, BS, JIS, and GOST standards. Flexible Customization: Full customization, minor customization, and customization from samples or designs. 12-Month Warranty: Covers all product defects and service issues unconditionally after delivery. Fast Delivery Options: Delivery time ranges from 3 to 20 days depending on specifications.