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【2】Size: M3 – M24.
【3】Surface treatment: Natural color, passivated, customizable.
【4】Packaging methods: Bagged, Boxed, Cardboard box, Pallet.
【5】Execution standards: GB, DIN, ISO, ANSI, JIS, etc.
【6】Optional services: Customize、OEM/ODM、Testing (salt spray testing,etc)
Stainless steel weld studs are specialized fasteners designed to be permanently attached to metal surfaces through stud welding processes. After welding, the stud forms a strong, integral connection with the base material, allowing components to be fastened using nuts or other threaded connections. Stainless steel weld studs are widely used where reliable structural fastening, corrosion resistance, and efficient assembly are required.
ZSD Screw manufactures stainless steel weld studs using controlled material processing and precision machining to ensure dimensional accuracy and stable welding performance. Production and dimensional requirements follow internationally recognized standards such as ISO 13918 and DIN 32501. Stainless steel material properties are produced according to ISO 3506 to ensure consistent tensile performance and corrosion resistance for industrial fastening applications. Quality inspection includes dimensional verification, thread inspection, and batch traceability to maintain reliable welding and fastening performance.
Standard weld stud dimensions are produced according to ISO and DIN specifications. Custom designs, special welding tips, and non-standard sizes can be manufactured based on customer drawings or application requirements.
Type: Weld Stud
Diameter Range: M3 – M24
Length Range: 6 mm – 200 mm
Thread Type: Metric / UNC / UNF
Thread Form: Partial Thread / Full Thread (depending on stud type)
Standard: ISO 13918 / DIN 32501
Tolerance: According to standard specifications or customer drawings.
Materials Available: Stainless Steel 304 (A2)、Stainless Steel 316 / 316L (A4). Other corrosion-resistant stainless steel materials can be supplied upon request depending on service environment requirements.
Strength Grades: Stainless steel weld studs are generally manufactured according to ISO 3506 with common property classes including A2-50、A2-70、A4-70、A4-80, which define the mechanical properties of stainless steel fasteners used in structural and equipment assemblies. For comparison across general fastening systems, carbon steel bolts commonly use strength grades 4.8、8.8、10.9、12.9、14.9 according to ISO 898-1. ZSD Screw applies dimensional inspection, mechanical property verification, and batch quality control to ensure consistent fastening reliability.
Surface Treatment: Stainless steel weld studs typically rely on the inherent corrosion resistance of stainless alloys. Depending on application conditions, the following surface finishing processes may be applied: Passivation treatment、Electropolishing、Cleaning and protective oil treatment. Additional surface finishing or special treatments can be arranged according to environmental conditions or project specifications.
Applications: In mechanical equipment manufacturing, stainless steel weld studs are widely used for attaching mounting points, brackets, structural panels, and equipment housings to metal structures. Stud welding allows fast and reliable installation without drilling through the base material, helping maintain structural integrity and assembly efficiency in machinery manufacturing.
In electronic equipment and industrial electronics, stainless steel weld studs are commonly used for fastening control panels, grounding terminals, electrical cabinets, and equipment enclosures. Reliable welded fastening points help maintain structural stability, electrical grounding continuity, and vibration resistance in precision electronic equipment.
In the new energy sector, stainless steel weld studs are applied in photovoltaic mounting structures, inverter housings, battery storage equipment frames, and supporting brackets. Their corrosion resistance and permanent welded connection help maintain structural reliability in outdoor environments exposed to humidity and temperature variation.
In conventional and renewable power generation facilities, weld studs are used in turbine equipment housings, generator frames, metal panel structures, cable tray supports, and auxiliary mounting assemblies. Stud welding technology enables efficient installation while maintaining reliable structural fastening under vibration and operational loads.
In the automotive and transportation industries, stainless steel weld studs are widely used in vehicle body panels, exhaust system assemblies, heat shields, and structural mounting points. The welding process enables fast and consistent installation during automated production lines while maintaining secure fastening performance.
In heavy industry and engineering equipment manufacturing, stainless steel weld studs are used in steel structures, processing equipment housings, marine structures, and industrial infrastructure assemblies. Their permanent welded connection and corrosion resistance support durable fastening performance in demanding environments such as offshore equipment, chemical plants, and large-scale engineering installations.
304-A2: Moderate work hardening rate, suitable for general cold working and deep drawing processes. It has good cold workability and is widely used in the production of hexagon screws, nuts and washers.
316-A4: Added with molybdenum, it has stronger corrosion resistance than 304. It is especially suitable for applications in seawater and chemical media, with enhanced corrosion resistance and pitting resistance.
Notes：1. If the nickel content is lower than 8%, the minimum manganese content must be 5%.
2. When the nickel content is greater than 8%, there is no limit on the minimum copper content.
3. If the chromium content is lower than 17%, the minimum nickel content shall be 12%.
4. For austenitic stainless steel with a maximum carbon content of 0.03%, the maximum nitrogen content can reach 0.22%.
5. For products with larger diameters, to meet the specified mechanical properties, a higher carbon content may be specified in the manufacturer’s instructions; however, for martensitic steel, the carbon content shall not exceed 0.12%.
Custom Fasteners Manufacturer: ZSD Screw specializes in manufacturing custom non-standard fasteners according to customer drawings and samples.We support: Special dimensions and tight tolerances. Special thread forms. High strength and special materials. Small batch and mass production. Our experienced engineers provide professional technical support from design to production.
Quality Control & Certifications: Quality is strictly controlled throughout the entire production process.Inspection includes: Raw material inspection. Dimensional measurement. Thread gauge inspection. Salt spray test. Torque test. Hardness testing. Tensile strength testing Certifications: ISO 9001. IATF 16949. EN standards. ASTM standards.
Why Choose ZSD Screw: More than 16 years manufacturing experience. Complete production process (cold heading, CNC machining, heat treatment) . Strong custom fastener capability. Stable quality and competitive factory price. The delivery time of the source factory is short and controllable. Professional technical services and long-term after-sales service.
Please send us your drawings or specifications. Our engineers will provide professional fastening solutions and quotations within 24 hours.
A: We are a certified source factory located in SuZhou, China, with 16+years of expertise. Unlike trading companies, we operate our own cold-heading and thread-rolling lines, offering you factory-direct pricing, total quality control, and transparent production timelines.
A: It represents the highest quality standard in the automotive industry. For you, this means Automotive-Grade precision, 100% batch traceability, and a "Zero Defect" management philosophy applied to every fastener we produce, regardless of your industry.
A: Absolutely. Customization is our core strength. Our engineering team works with CAD, SolidWorks, and 3D Step files. From specialized head types to complex multi-station parts, we provide a one-stop solution from rapid prototyping to mass production.
A: Beyond our IATF protocols, we utilize high-speed automated optical sorting machines. These systems inspect 100% of the batch for dimensional accuracy, thread integrity, and surface defects, ensuring we meet your strict PPM (Parts Per Million) requirements.
A: Yes. As an IATF-certified partner, we provide full PPAP Level 3 packages, including Control Plans, PFMEA, and ISIR. Every shipment is accompanied by a 3.1 or 3.2 Material Test Report to verify chemical and mechanical compliance.
A: For standard stock items, there is no MOQ—you can order by the box. For custom parts, the MOQ depends on the specifications. We offer free samples for quality evaluation (customer covers shipping), which can be fully refunded upon mass production orders.
A: Stock items are shipped within 24-72 hours. Standard production typically takes 20-30 days, while complex custom projects (including tooling) take 35-45 days. We provide a firm delivery commitment with every quotation.
A: Yes. We offer DDP services globally (USA, Europe, Southeast Asia, etc.). We handle all freight, customs clearance, and import duties, delivering the goods directly to your door so you can focus on your business without logistics headaches.