Shanghai Soverchannel Industrial Co., Ltd. is a professional manufacturer specializing in non-standard and standard bolts. We operate advanced production lines with an annual output of 10,000 tons, equipped with comprehensive inspection instruments. Mastering unique long bolt cold-heading technology, we can achieve one-step cold extrusion forming for non-standard special-shaped parts.
Struggling to find the right standard part? Let us engineer it. From automotive bolts to unique shaped components, we specialize in custom runs based on your samples or drawings.
Why Dacromet Coating B7 Threaded Rods Studs Are Specified for Critical Industrial Fastening
In heavy industrial environments—offshore oil platforms, petrochemical processing plants, power generation facilities, and marine infrastructure—the failure of a single fastener can trigger catastrophic cons...
How Machine Screw Jacks Work: Spiral Transmission Explained
A machine screw jack converts rotary motion into precise linear displacement through the principle of spiral transmission. When an input shaft — driven by an electric motor and reducer — rotates the worm gear assembly, the lifting screw is...
Jack Bolts and Thread Rods: The Hidden Core of Every Car Jack
When a driver pulls over on the side of the road and reaches for a scissor car jack, the last thing on their mind is the engineering inside it. Yet the performance, safety, and longevity of that jack depend almost entirely on a single co...
What Are Thread Rods and Studs — and Where Are They Used
Thread rods & studs are externally threaded fasteners that serve as the mechanical backbone of countless industrial and mechanical assemblies. A thread rod — also called an all-thread rod or fully threaded rod — carries continuous threadi...
Understanding Nuts & Washers: Roles, Differences, and Why Both Matter
Nuts & washers are two of the most fundamental components in any fastened assembly, yet they serve distinctly different functions that are frequently misunderstood. A nut is a threaded fastener that mates with a bolt or t...
What Are Jackscrews? Definition and Core Function
A jack screw — also written as jackscrew or screw jack — is a mechanical fastener and linear motion actuator that converts rotary motion into controlled linear displacement. In practical terms, turning the screw causes a load to move up or down with ...
Understanding the Critical Role of Bolt Surface Treatment
Fasteners serve as the core connection components in machinery, equipment, and construction projects. Surface treatment represents the key manufacturing process that directly determines corrosion resistance, mechanical strength, and operation...
Performance Comparison: 2205 vs 2507 Duplex Stainless Steel
Selecting the right duplex stainless steel fastener requires understanding the fundamental metallurgical differences between 2205 (S32205) and 2507 (S32750, commonly referred to as 2207). Both grades belong to the duplex family, characteriz...
Understanding Automotive Screws and Series Profile
Automotive screws play a critical role in modern vehicle engineering, providing secure fastening solutions across structural, mechanical, and aesthetic components. As a specialized category of fasteners, automotive screws must meet strict performanc...
Four Bolt Head Types and Why the Distinction Matters
The head of a bolt does more than provide a surface for a wrench to grip. It determines how load is distributed into the joint, what tools are required for installation and removal, whether the fastener can be used in countersunk or flush applica...
Threaded Rod and Hex Head Screw Rod: Understanding the Product Category
Threaded rod -- a fully threaded cylindrical bar with no head at either end -- is one of the most fundamental and versatile fastening components in industrial, construction, and mechanical engineering. Unlike a standard bolt or...
A hex head bolt is the most universally used threaded fastener, defined by its six-sided head, full or partial thread shank, and requirement for a separate washer to distribute clamping load. A hex flange bolt is a direct evolution of the same fastener — it incorporates a wide, circular flange inte...