China DIN6921 Flange Bolt Manufacturer, Supplier, Factory

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. 

GB10433 Welding Shear Stud refer to the installation of steel pins or grommets, that extend out of the top flange of a steel support beam. Normally the GB10433 Welding Shear Stud are welded, with a spot welder, after the metal deck is installed over the supporting structural steel. The spot welder will burn through the metal deck and attach the GB10433 Welding Shear Stud directly to the top of the steel beam.

SABS 1282 Black Heavy Hex Bolts are specifically designed for use with heavy hex nuts in the connection of structural members (as opposed to tapped holes). SABS 1282 Black 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 SABS 1282 Black Heavy Hex Bolts are designed for strength and durability, allowing SABS 1282 Black Heavy Hex Bolts to conform to ASTM A325. SABS 1282 Black Heavy Hex Bolts are often applied alongside structural nuts and washers to metal beams and girders.

DIN933 Hex Bolt is the most commonly used hex bolt in the metric bolt, DIN933 Hex Bolt common grades are 4.8, 6.8, 8.8, 10.9, 12.9. DIN931 Hex Bolt surface is coated with different coatings for different environments.

Shear Connector Welding Screw refer to the installation of steel pins or grommets, that extend out of the top flange of a steel support beam. Normally the Shear Connector Welding Screw are welded, with a spot welder, after the metal deck is installed over the supporting structural steel. The spot welder will burn through the metal deck and attach the Shear Connector Welding Screw directly to the top of the steel beam.

​DIN21346 Square Bolt are similar to Hex Cap screws but have a 4-sided square head instead of a 6-sided hexagonal head.They are commonly referred to as both bolts and screws and are designed to be driven with a wrench. DIN21346 Square Bolt are partially threaded with a shoulder beneath the head.