PRODUCT DESCRIPTIONStandard:F436Description: F436 washers are commonly used in automobile manufacturing due to their strength and durability. These washers are specifically designed to meet ASTM specifications for mechanical, chemical, and dimensional requirements. They are hardened or carburized for extra strength and are smaller in size compared to standard F844 washers. Zinc plating is a popular choice for F436 washers used in automobile manufacturing. Zinc plating provides corrosion resistance, which is crucial for automotive applications where exposure to moisture, chemicals, and other harsh conditions is common. The zinc plating helps protect the washers from rust and corrosion, ensuring their longevity and performance in automotive assemblies. F436 washers with zinc plating are often used in structural work in conjunction with A325 and A490 bolts. These washers provide the necessary hardness and strength required for automotive applications, ensuring reliable and long-lasting performance. Material45#/40CRSize1/4"-4"FinishPlain/black/ZINC/HDG/Dacromet/Mechanical GalvanizedHardnessHV300/HRC35-45Markingcan be CustomizedApplicationConstrution/Wind turbines/railway linePackingCarton+ pallet; we can pack washers as your requirementsTermsFOB+shanghai/ningboDelivery time30-70days sizeInner diameter(min)Inner diameter(max)Outside diameter (min)Outside diameter (max)Thickness(max)nominal sizeThickness(min)1/4"7.1377.92515.08715.87521.651.29545/16"8.7379.52516.66217.4521.651.29543/8"10.31211.119.83720.6521.651.29547/16"11.91212.722.6323.4121.651.29541/2"13.48714.326.18727.7874.953.472.46389/16"15.08715.929.31130.914.953.472.46385/8"17.4518.2632.53734.1374.953.83.09883/4"20.6521.433738.14.953.83.09887/8"23.824.58743.66245.2374.953.973.45441"28.57529.3650.01251.5874.953.973.45441-1/8"31.7532.53756.36257.9374.953.973.45441-1/4"34.92535.71262.71264.2874.953.973.45441-3/8"38.1039.768.2570.634.953.973.45441-1/2"41.27542.06275.41276.9874.953.973.45441-5/8"44.4546.0180.9984.117.164.531-3/4"47.6349.2384.1287.297.164.531-7/8"50.8052.3687.3490.467.164.532"53.9855.5893.6596.817.164.532-1/4"60.3361.93100103.168.627.36.12-1/2"66.6868.28112.7115.868.627.36.12-3/4"73.0374.63125.4128.568.627.36.13"79.3880.98138.1142.828.627.36.13-1/4"85.7388.9149.23155.528.627.36.13-1/2"92.0895.25161.93168.228.627.36.13-3/4"98.43101.6174.63180.928.627.36.14"104.78107.95187.33193.628.627.36.1 Products pictures for Flat washers