Amazon.com: Socket Head Cap Screw, DIN 912, M20-2.5 x 140mm, Alloy Steel Metric Class 12.9, Black Oxide, Hex Socket (Quantity: 10) Coarse Thread, M20 Allen Bolt, Length: 140mm, Partial Thread : Industrial & Scientific
Amazon.com: M20-2.5 x 200mm Hex Head Cap Screws, Steel Metric Class 8.8, Plain Finish (Quantity: 10 pcs) - Coarse Thread Metric, Fully Threaded, Length: 200mm Metric, Thread Size: M20 Metric : Industrial & Scientific