About Fasteners
Fasteners Classification and Characteristics There are many kinds of fasteners. According to their names, fastener can be divided into seven basic categories: bolts, screws, nuts, rivets, pins, welding nails and washers. Bolts include external hexagonal [...]
Heavy External Hexagonal Bolts
Heavy external hexagonal bolts: Standard: A325M. Level: 4.8/5.8/6.8/8.8/10.9/12.9; Grade 2/5/8. Specification: M6-M24; 1/4 inch-1 inch. Length: 10mm-270mm; 1/2inch-10inches. Surface treatment: natural color, blackening, galvanizing, hot galvanizing, dacromet. Packing: 25 kg in bulk and 36 cases [...]
High Strength Galvanized Bolt
High strength galvanized bolt is galvanized, so what are their advantages? Hot dip galvanizing is also used to prevent corrosion on the surface of screw, bolt and nut. High strength galvanized bolt has better corrosion [...]
High Strength Dacromet Bolt
High strength Dacromet bolt is treated by Dacromet, so what are the advantages? 1. Superior corrosion resistance. Unetched galvanized coatings are usually corroded by rainbow colored film with thickness of 1-3 micron for 20 hours [...]
Ultra-long Bolts
Ultra-long bolts are usually constructed by the method of torque-one-axis force. They are divided into two stages: initial and final twisting. Torque coefficient refers to the coefficient between the torque and the axial force of [...]
Building Steel Structures Bolts
Points for Attention in Connecting of Building Steel Structures Bolts 1 In order to make the connection reliable, the number of permanent bolts should not be less than two for each member on the joint [...]
Bored Bolts
The SB of bored bolts refers to the ultimate tensile strength of bolts, indicating the maximum resistance of bored bolts to failure under tension. Tensile strength is the maximum nominal tensile stress of the specimen [...]
High Strength Wind Power Bolt-Nut
High-strength wind power bolt-nut connection has no requirement for bolt fastening axial force, so the bolt fastening construction is based on operator's hand feeling and the shape control of connecting joint. Generally speaking, an operator [...]
Material of Locking Nut
Locking nut is a kind of nut widely used in machinery and other industries. Its working principle is self-locking by friction between nut and bolt. But the reliability of this self-locking will be reduced in [...]
Advantages of Anti-loosening Nuts
Anti-loosening nuts are common fastening and anti-loosening nut. In some important occasions, in the operation of mechanical equipment, the nut will loosen because of the long use time. At this time, we will take some [...]