...bought these screws, Small Parts Steel Machine Screw, Zinc Plated Finish, Pan Head, Phillips Drive, Meets DIN 7985, 16mm Length, Fully Threaded, M3.5-0.6 Metric Coarse Threads (Pack of 100) https://a.co/d/bIZmA0Y
And these washers, Small Parts 316 Stainless Steel Flat Washer, Plain Finish...