Industry News
Is magnetic attraction in stainless steel screws a quality issue?
Many people habitually use magnets to test stainless steel screws when purchasing or using them, assuming that screws which stick to magnets are substandard. This is actually a common misconception. Magnetic properties in stainless steel screws ≠ quality issues. The core factor depends on the materi......
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Why does the performance of adhesive-coated bolts deteriorate?
Adhesive-coated bolts feature a specialized adhesive layer applied to their surface, serving three core functions: fastening, sealing, and anti-loosening. This coating not only enhances the bond between the bolt and the connected component but also isolates external contaminants, improving overall f......
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Why Do Your Galvanised Screws Rust?
Many assume galvanised screws possess inherent rust-proof properties, yet they still corrode during use. What exactly is happening? In truth, the zinc coating serves merely as a protective “outer layer” for the screw, not a universal shield. Rust formation is largely linked to the condition of the c......
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How to Select Self-Tapping Screws?
Self-tapping screws feature diverse classification dimensions. Common types include Phillips pan-head self-tapping screws, standard pan-head self-tapping screws, and Phillips countersunk self-tapping screws. Additionally, they are categorized by tip characteristics into drill-point, flat-point, and ......
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How to Choose Surface Treatments for Fasteners?
Most fasteners are made of carbon steel or alloy steel and generally require corrosion resistance. Therefore, surface coatings must adhere firmly to prevent peeling during installation and removal. For threaded fasteners, coatings must also be sufficiently thin to ensure threads can engage properly ......
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Characteristics of Quenching Cracks
Quenching cracks are common quenching defects caused by internal stresses that cannot be released during the quenching process. Preventing crack formation should begin at the product design stage. This involves selecting appropriate materials, implementing rational structural design, specifying suit......
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