Bolts and screws - several misconceptions in the procurement of stainless steel fasteners
Bolts and screws - Stainless steel fasteners use coarse threads instead of fine threads: There are many key connecting components on equipment, such as rotating shafts, and most bolts have fine threads.
Bolts and screws - If there are missing parts during maintenance, some maintenance workers will replace them with coarse toothed anchor bolts, which should also be addressed.
Threaded rods and bolts - due to the relatively large nominal diameter, small pitch and diagonal of fine threaded bolts, they have high strength, high locking cost-effectiveness, and strong ability to withstand impact, vibration, and exchange loads.
Threaded rods and bolts - once replaced with coarse threaded anchor bolts, it is easy to cause loosening or detachment, breakage, and even mechanical accidents.
Threaded rods and bolts - stainless steel fasteners with mismatched porosity: The anchor bolts on the equipment that bear lateral loads and shear stresses, such as the pivot shaft anchor bolts and axle anchor bolts, are matched with the screw holes to form a clearance fit. The installation should be firm and reliable, and able to withstand lateral forces.
Threaded rods and bolts - if not carefully inspected during the installation process and there is a significant gap between the bolt and the screw hole, continuing to install them can easily lead to screw loosening or disconnection accidents.
Expansion tube and assembly components - thickened nuts for steel fasteners enhance connection stability: Some people mistakenly believe that thickened nuts can increase the number of working turns of the threads and improve the stability of the connection.
Expansion tubes and assemblies - but in reality, the harder the nut, the more uneven the load distribution between the threads, and the more likely the connecting parts are to loosen.
Stainless steel fasteners with one mother and multiple pads: After use, expansion pipes and assemblies may occasionally have longer anchor bolts, so some people attach spring pads to the anchor bolts.
Expansion tubes and assemblies - In such cases, uneven load-bearing capacity of the gasket in the fastening process can lead to fracture, resulting in a decrease in the pre tightening force of the anchor bolt, and may also generate axial force loads, reducing the stability of the screw connection.
