Carbon Steel Tapered Square Washer For M8 Screws, 2.5mm to 4.5mm Thick, ID 9mm x 22mm Wide, Pack of 10, ZFM0805
SGD $10.00
Use tapered square washers to compensate for channel sections within C-beams or I-beams where parallelism is lacking. This allows them to be secured and fastened against the base material.