Quick Details Finish: Black, ZINC, Black Oxide, ZINC PLATED Material: Steel Measurement system: Metric Head Style: Flat Place of Origin: Jiangsu, China Brand Name: DALI Model Number: DIN7991/ISO10642 Standard: DIN Product name: DIN7991/ISO10642 Grade: 4.8/8.8/10.9/12.9 Surface: Plain/Black/Zinc/YZP/HDG MOQ: 500kgs Size: M4-M16 Delivery time: 10-25 Days Payment Term: T/T Brand: DaLi