M12 Carbon Steel Flat Washer, Black Oxidized Alloy Steel, 8.8 Grade Metal Flat Washer, 8mm ID, 16mm OD, 1mm Thickness, 50Pcs…

• Made of widely used carbon spring steel with higher strength, hardness, elasticity and hardenability.
• Size: 12mm/ 0.47" inner diameter, 24mm/ 0.94" outer diameter, 2.5mm/ 0.1" thickness.
• Flat washers evenly distribute pressure not only on the nut but also on the head of the fastener.
• The washer prevents damage to the material and reduces the possibility that the nut will come loose from uneven surfaces.
• Package Included: 75 Pcs M12 Steel Flat Washers

Specification: M12 x 24 x 2.5 mm Steel Flat Washers Inner Diameter: 12mm/ 0.47" ; Outer Diameter: 24mm/ 0.94" ; Thickness: 2.5mm/ 0.1" Surface Treatment: Blackening Material Characteristics: It is a carbon spring steel with a wide range of uses. Compared with 65 steel, it has higher strength, hardness, elasticity and hardenability. This steel is generally used after quenching and tempering at medium temperature. Material Chemical Composition (%): Carbon: 0.62-0.70, silicon: 0.17-0.37, manganese: 0.90-1.20, phosphorus ≤ 0.035, sulfur ≤ 0.035, nickel ≤ 0.25, chromium ≤ 0.25, copper ≤ 0.25 Package Includes: 75 Pcs of M12 Steel Flat Washers