Uxcell 20pcs M8-1.25 x 20mm Flange Hex Head Bolt Fully Thread Metric DIN 6921 Carbon Steel Black Oxide Plated Flanged Hexagon Screws, Black

Specification: Thread Size: M8-1.25 x 20 Bolt Length: 20mm /0.79" Thread length: 20mm /0.79" Hex Head Dia: 13mm /0.51" Washers Dia: 18mm /0.71" Thread Coverage: Fully Thread Color: Black Screw Type: Metric Flanged Bolts - DIN 6921 Descriptions: 1. Flange Hex Head: The bolts feature a hexagonal flange head design that provides a wider surface area than standard bolts, providing an enhanced grip during installation and more evenly distributing the load, meeting DIN6921 specifications 2. Hex flange head bolts are widely used in furniture assembly, office equipment, communication devices, shipbuilding, and machinery. Allowing for quick and efficient installation with wrenches or sockets, ensuring strong and reliable connections in both home and industrial settings. 3. Carbon steel flange hex head bolts offer high hardness, good toughness, and wear resistance. Zinc Coated increases hardness and wear resistance, allowing it to maintain its sharpness and machining efficiency longer, and also provides corrosion resistance. 4. Tips: Ensure that the selected bolt size matches the application requirements to avoid overloading or failure. Additionally, when using a wrench to tighten the bolt, appropriate torque should be applied to prevent over-tightening, which can result in stripping threads or loosening.