Our Factory
Professional processing of all kinds of hardware parts, non-standard equipment accessories, fixtures, equipment design, and processing, and provide professional CNC machine tool automation solutions. Adhere to the fast and accurate to customers to provide high-quality products and services, to create value for customers.
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![Inconel 600 Threaded Plug]()
Inconel 600 Threaded PlugThis Inconel 600 threaded plug is a high-performance sealing and fastening component designed for extreme environments. Manufactured from AMS 5665 compliant nickel alloy, it offers exceptional...view more -
![Tube End Male Adapter]()
Tube End Male AdapterThis Tube End Male Adapter is a precision-machined connector designed for fluid transfer systems, process equipment, and industrial assemblies that require dependable sealing and long-term...view more -
![Bayonet Roller Washer]()
Bayonet Roller WasherThe bayonet roller washer is a high-performance mechanical component designed for precision engineering applications. Its unique bayonet locking mechanism combined with roller elements ensures...view more -
![Round Plate Washer]()
Round Plate WasherThis precision-machined Round Plate Washer is designed for applications that demand stable support, accurate alignment, and consistent spacing. As a precision aluminum washer, it is manufactured...view more -
![Aluminum Circular Washer]()
Aluminum Circular WasherThe Precision Low Carbon Steel Flat Washer is a precision-stamped component designed to provide stable support, accurate spacing, and reliable load distribution in mechanical assemblies, fixtures,...view more -
![Hexagon Socket Screw Plug]()
Hexagon Socket Screw PlugThis Hexagon Socket Screw Plug is a precision-machined sealing component designed for hydraulic blocks, pneumatic equipment, and machinery housings where reliable threaded closure is essential....view more -
![Sleeve Seat]()
Sleeve SeatThis product is a high-strength metal sleeve seat manufactured from premium alloy steel (e.g., 316 stainless steel or carbon steel) through precision CNC machining. It is designed to provide...view more -
![Four-pin Socket]()
Four-pin SocketThis custom four-pin socket features a titanium alloy housing, gold-plated terminals, and glass or ceramic insulation for stable conductivity and high reliability. With a 1/4-28 UNF-2A threaded...view more -
![Cone Shaped Plugs]()
Cone Shaped PlugsThis precision stainless steel fitting is expertly machined from 0Cr18Ni9 (304 equivalent) bar stock in compliance with GB/T1220-2007 Stainless Steel Bars standards. Designed as a cone shaped...view more -
![Custom Hexagon Head Screw Stopper]()
Custom Hexagon Head Screw StopperThe custom hexagon head screw stopper is designed for industrial applications requiring strict dimensional tolerances and reliable sealing. Featuring a **∅6mm body diameter**, M3 internal thread,...view more -
![Blanking Cap Washer]()
Blanking Cap WasherThis Blanking Cap Washer is engineered for precision sealing, spacing, and load-distribution applications where stable performance and corrosion resistance are essential. Manufactured from 321...view more -
![Custom Bronze Bushings]()
Custom Bronze BushingsThis product is a precision-engineered custom bronze bushing designed for high-performance mechanical applications. Crafted from high-grade bronze alloys, it features a smooth surface finish and...view more
Why choose us
Production Equipment
Our company has dozens of precision machining equipment such as CNC lathes, milling machines, grinders, and drilling machines.
Production Market
Our product sales network covers Beijing, Guangdong, Fujian, and many other provinces and cities in China, and is exported to Southeast Asia, Europe the United States, and other foreign markets.
Our Service
During the manufacturing process from customer design to final shipment, the QC department (IQC, IPQC, FQ) strictly controls the quality of each step's products according to customer requirements. A comprehensive inspection is also conducted on the products before shipment.
Our Certificate
The company has implemented the ISO9001 standard to optimize processes further and standardize management. It continues to invest in the research and development of new products and technologies and has currently applied for and obtained multiple national technology patents.
Tube End Male Adapter
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Material
Stainless steel 304 or 316, carbon steel, brass, or special materials on your requirements.
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Application
Instrumentation, analytical installations, offshore control panels.
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Operating pressure
2000-16800psi
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Temperature
-255℃-649℃
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Material |
Bar Stock |
Forgings |
Maximum Temperature Ratings °C (°F) |
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Stainless Steel SS316 |
ASTM A479 Type 316 ASTM A276 Type 316 |
ASTM A182 F316 |
537 (1000) |
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Carbon Steel |
ASTM A108 JIS G4051 S20C-S45C |
ASTM A105 JIS G3201 SF440A |
204 (400) |
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Brass |
ASTM B16 C36000 JIS H3250 C3604 |
ASTM B283 C37700 JIS H3250 C3771 |
190 (375) |
International Standard Size
Our factory manufactures male tube adapters according to international standard size.
Tube od size is from 1/8-1” or metric 3mm-25.4mm. The thread is available in NPT, BSPP, G, and RT. The thread size is from 1/8”-1”.
Male tube adapters are leak-free when you assemble them in your pipeline. We can offer samples for you to test them.
Round Plate Washer
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Product Name |
Round Plate Washer |
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Brand Name |
Topspring |
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Material |
Stainless Steel: $S201,$s303,sS304, SS316, SS410,SS420 |
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Grade |
4.6, 5.6, 8.8, 10.9, or higher (as per application) |
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Standard |
GB, DIN,ISO, ANSI/ASTM, BS, BSW, JIS etc |
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Non-standards |
OEM is available, according to drawing or samples |
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Temperature Range |
Typically -40 to 300 °C(-40 to 572 °F) |
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Certifications |
SO 9001. ASTM A307, DIN 933, CE, etc |
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Packaging |
Bulk,Boxes,Crates, Bags |
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Shipping |
Standard Freight, Express Delivery, Air, Sea, etc |
We offer the highest quality fasteners with the quickest turnarounds. If we don't have it in stock we can easily make it for you. Our versatile machining facilities can provide next-day manufacturing, even on custom orders.
Most specialty washers range from 0.25" - 3" in diameter.
Metric sizes that are available range from M6 - M64 in diameter.
There's no minimum quantity to purchase.
Custom fasteners manufactured overnight when needed.
Material Options for Washers
Our broad selection of washers are available in multiple combinations of materials and finishes. Common materials used for washers include:
Plain: Plain steel flat washers with no special coatings. Usually ideal for indoor use.
Zinc Coating: Standard zinc coating that provides moderate corrosion resistance.
HDG (Hot-Dip Galvanized): Hot-dip galvanized coatings provide excellent corrosion resistance through a very thick zinc coating. Ideal for outdoor use and applications with exposure to chemicals.
Stainless Steel (18-8, 316): Stainless steel provides high strength and corrosion resistance for marine and outdoor use. Grade 18-8 offers general resistance, while 316 provides superior protection against chlorides.
Thru-Hardened: Heat-treated for increased hardness and strength. Used in high-stress applications such as structural connections.
Nylon: Plastic washers that are used for applications that require non-metallic fastening solutions.
Plate Washer Material and Finish Options
18-8 stainless steel washers feature good chemical resistance and may be slightly magnetic.
01
316 stainless steel washers have exceptional resistance to chemicals and saltwater. They may be mildly magnetic.
02
Black-oxide steel washers are mildly corrosion-resistant in dry environments.
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Zinc- and zinc-yellow-chromate-plated steel washers are corrosion-resistant in wet environments.
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Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc- and zinc-yellow-chromate-plated washers.
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Our Certificate
FAQ
Others Custom Fasteners - Jingbohui (Xiamen) Mechanical Technology Co., Ltd
Four pin Socket, Custom Bronze Bushings, Tube End Male Adapter
