China ASTM A307 Grade B Manufacturer, Supplier, Factory

ANSI A490 Balck Heavy Hex Bolts are specifically designed for use with heavy hex nuts in the connection of structural members (as opposed to tapped holes). ANSI A490 Balck Heavy Hex Bolts are strong heavy-duty bolts that are typically used for creating structures through steel to steel structural connections such as buildings and bridges. A grade 8 bolt would be one that meets ASTM A490 standards. The high quality steel used to create ANSI A490 Balck Heavy Hex Bolts are designed for strength and durability, allowing ANSI A490 Balck Heavy Hex Bolts to conform to ASTM A325. ANSI A490 Balck Heavy Hex Bolts are often applied alongside structural nuts and washers to metal beams and girders.

DIN127A Lock Single Coil Spring Washer are commonly used metric lock washers, As you tighten a bolt, these DIN127A Lock Single Coil Spring Washer flatten to add tension to the threaded joint and prevent loosening from small amounts of vibration. DIN127A Lock Single Coil Spring Washer meet a DIN or ASME standard for split lock washer dimensions. Standard DIN127A Lock Single Coil Spring Washer have a left-hand helix, which means you can only use them with bolts that have right-hand threads to prevent clockwise rotation from vibration. 

ASTM A194-2HM Heavy Hex Nuts are the most commonly used nuts in the fastener industry.ASTM A194-2HM Heavy Hex Nuts are relatively strong and durable fasteners that can withstand some special industrial conditions. ASTM A194-2HM Heavy Hex Nuts hardness, thickness and tensile strength enable it to withstand some extreme industrial environments.

ISO4775 heavy Hexagon Nut are the most commonly used nuts in the fastener industry.ISO4775 heavy Hexagon Nut are relatively strong and durable fasteners that can withstand some special industrial conditions. ISO4775 heavy Hexagon Nut hardness, thickness and tensile strength enable it to withstand some extreme industrial environments.

DIN6916 Steel Structural Flat Washer is one of our common standard washers, the material of carbon steel, the surface has black oxide,zinc plated. DIN6916 Steel Structural Flat Washer is use with A394 high strength structural bolts. DIN6916 Steel Structural Flat Washer, mainly punched out from iron plates. The common shape of a flat washer is a hole in the central. The pore size specifications according to customer requirements. high quality and lower price. Our company has certificates ISO9001.

ISO4014 Hex Bolt is the most commonly used hex bolt in the metric bolt, ISO4014 Hex Bolt common grades are 4.8, 6.8, 8.8, 10.9, 12.9. ISO4014 Hex Bolt surface is coated with different coatings for different environments.