M12 x 30 mm OD Zinc Plated Finish Low Carbon Steel Flat Washer, 100 pk.: Amazon.com: Industrial & Scientific
M12 x 1.75 x 30 MM Coarse Thread ISO 4029 Class 45H Socket Set Screw Knurled Cup Point Alloy Steel Black Oxide Pk 25: Amazon.com: Industrial & Scientific
FASTON® Set Screws with Hexagonal Socket and Point M12 x 30 Made of A2 V2A Stainless Steel (Pack of 50) DIN 914 (ISO 4027) Set Screws Threaded Screws Maggot Screws : Amazon.de: DIY & Tools
Amazon.com: 5 M12-1.25 X 30mm Cap Screws Plain Din 961 : Industrial & Scientific