The quality Brass Trapezoidal Screw Nut from Maitu factory represents a specialized component engineered for applications demanding low friction, corrosion resistance, and reliable performance in power transmission systems. Manufactured from high-quality brass alloy, this nut is designed to mate perfectly with standard 30° trapezoidal screws. And then it creates an efficient motion conversion pair that excels in specific operating environments.
A defining feature of the brass nut is its inherent self-lubricating property and exceptional corrosion resistance. The natural lubricity of brass significantly reduces the coefficient of friction when paired with a steel screw, making it an ideal choice for applications where external lubrication is impractical or where contamination from lubricants must be avoided. This characteristic is particularly valuable in food processing equipment, medical devices, and marine applications.
With over 12 years of professional experience in the production, sales, and solution services, Maitu is committed to solving all the requirements of buyers.
Maitu has focused on the Brass Screw Nut production for over 12 years, accumulating profound expertise in brass material properties and precision processing. Unlike general manufacturers, we have a deep understanding of the inherent self-lubricating and corrosion-resistant characteristics of brass, and have optimized the thread processing technology to ensure that each nut achieves perfect mating with standard 30° trapezoidal screws. Our technical team is proficient in solving the key problems of brass processing (such as avoiding material deformation and ensuring thread accuracy), ensuring that the products meet the strict requirements of various application scenarios and reducing the risk of product mismatch for buyers.
Our Brass Nuts are made of high-quality brass alloy, which has inherent self-lubricating properties and excellent corrosion resistance—eliminating the need for external lubrication and avoiding contamination risks. This makes our products especially suitable for scenarios with high hygiene and corrosion resistance requirements, such as food processing equipment, medical devices, and marine applications. The brass material also has excellent anti-galling properties, which can effectively reduce friction when paired with steel screws, ensuring smooth operation and extending the service life of the entire transmission system, thus reducing the buyer’s maintenance and replacement costs.
Maitu offers Brass Trapezoidal Screw Nuts in various shapes and types (including Flange Type, Wide Block Type, and Block Type), with complete production parameters covering sizes from 10mm to 40mm, which can directly meet the standard procurement needs of most buyers. For customers with specific dimensional requirements, we provide professional custom machining services, including custom shape, size, thread specification, and surface treatment. Our self-developed ERP system tracks the entire customization process, from drawing confirmation to sample production, ensuring that the customized products are consistent with the buyer’s requirements and avoiding customization risks.
We fully understand that buyers pursue a balance between product performance and cost. These screw nuts are engineered for moderate load and speed conditions, with the advantages of low friction, smooth operation, and low cost compared to bronze alternatives. For scenarios that do not require heavy-duty load-bearing, our brass nuts can provide stable and reliable performance while reducing the buyer’s procurement cost. At the same time, we optimize the production process to control the product cost, and provide competitive prices for both small-batch and large-batch procurement, helping buyers improve cost performance.
Unlike ordinary manufacturers that only provide products, Maitu offers one-stop solution services for Brass Trapezoidal Screw Nuts. Our professional team will provide targeted suggestions according to the buyer’s application scenarios (such as recommending suitable surface-treated steel screws for matching), helping buyers optimize the transmission system and improve operational efficiency. We have a mature supply chain and stable production capacity, and welcome on-site factory visits. We also provide detailed product test reports and parameter instructions, ensuring transparent and trustworthy cooperation with buyers.

| TYPE | P | D | L1 | D1 | T | P.C.D. | K | W | W1 | Dynamic allowable thrust(kN) | |
| d | |||||||||||
| Round Flanged M-MTSFR Round Flanged Sliced Side, 2 holes M-MTSNR Round Flanged Sliced Side, 4 holes M-MTSGR Rectangle Flanged M-MTSCR | 10 | 2 | 20 | 24 | 36 | 5 | 26 | 4.3 | 22 | - | 2.168 |
| 12 | 22 | 30 | 44 | 31 | 5.4 | 24 | - | 3.332 | |||
| *14 | 3 | 33 | 4.165 | ||||||||
| *16 | 28 | 35 | 51 | 6 | 38 | 6.6 | 30 | 38 | 5.670 | ||
| 18 | 4 | 32 | 40 | 56 | 42 | 34 | - | 7.412 | |||
| *20 | 42 | 8.339 | |||||||||
| *22 | 5 | 36 | 50 | 61 | 7 | 47 | 40 | 47 | 10.506 | ||
| *25 | 12.087 | ||||||||||
| *28 | 44 | 56 | 76 | 8 | 58 | 9 | 48 | 58 | 15.288 | ||
| *32 | 6 | 17.918 | |||||||||
| 36 | 52 | 60 | 84 | 66 | 56 | - | 21.913 | ||||
| 40 | 58 | 70 | 98 | 10 | 76 | 11 | 62 | - | 28.756 | ||
According to the design, some types would be different to typical parameters. For more details, please contact us.
| Type | d | P | h | W | H | L | L1 | W1 | W2 | C | M | Q | Dynamic allowable thrust |
| M-MTSBHR M-MTSBHL | (kN) | ||||||||||||
| 10 | 2 | 10 | 30 | 20 | 24 | 16 | 20 | 8 | 4 | M4 | 8 | 2.168 | |
| 12 | 2 | 11 | 38 | 22 | 30 | 20 | 26 | 10 | 5 | M5 | 10 | 3.332 | |
| 14 | 3 | 11 | 38 | 22 | 30 | 20 | 26 | 10 | 5 | M5 | 10 | 4.165 | |
| 16 | 3 | 14 | 44 | 28 | 35 | 24 | 32 | 10 | 5 | M5 | 10 | 5.670 | |
| 18 | 4 | 16 | 48 | 32 | 40 | 28 | 36 | 11 | 6 | M6 | 12 | 7.412 | |
| 20 | 4 | 16 | 48 | 32 | 40 | 28 | 36 | 11 | 6 | M6 | 12 | 8.339 | |
| 22 | 5 | 20 | 62 | 38 | 50 | 34 | 46 | 14 | 10 | M8 | 16 | 10.506 | |
| 25 | 5 | 20 | 62 | 38 | 50 | 34 | 46 | 14 | 10 | M8 | 16 | 12.087 | |
| 28 | 5 | 25 | 68 | 47 | 56 | 40 | 52 | 14 | 10 | M8 | 16 | 15.258 | |
| 32 | 6 | 25 | 68 | 47 | 56 | 40 | 52 | 14 | 10 | M8 | 16 | 17.918 |
| Type | d | p | h | W | H | L | L1 | L2 | W1 | M1 | Q1 | M2 | Q2 | t | Dynamic allowable thrust(kN) | |
| M-MTSBNR M-MTSBNL | 10 | 2 | 20 | 20 | 30 | 24 | 16 | - | 12 | M4 | 8 | - | - | 6 | 2.168 | |
| 12 | 23 | 22 | 34 | 30 | 21 | 9 | 13 | M5 | 10 | M5 | 15 | 3.332 | ||||
| 14 | 3 | 4.165 | ||||||||||||||
| 16 | 27 | 28 | 41 | 35 | 25 | 11 | 18 | M6 | 12 | M6 | 18 | 7 | 5.670 | |||
| 18 | 4 | 29 | 32 | 45 | 40 | 30 | 16 | 22 | 7.412 | |||||||
| 20 | 8.339 | |||||||||||||||
| 22 | 5 | 30 | 36 | 48 | 50 | 40 | 20 | 26 | 10.506 | |||||||
| 25 | 12.087 | |||||||||||||||
| 28 | 38 | 44 | 60 | 62 | 50 | 25 | 32 | M8 | 16 | M8 | 22 | 8 | 17.043 | |||
| 32 | 6 | 19.389 |
The relatively softer nature of brass compared to steel introduces a fundamental trade-off between low friction and mechanical strength. While providing excellent anti-galling properties and smooth operation, brass nuts are typically engineered for moderate load and speed conditions. Under high loads or continuous heavy-duty cycles, the wear rate may be higher compared to hardened steel or bronze alternatives. Therefore, proper load calculation and periodic inspection are recommended for ensuring optimal service life.
Thus, the strategic pairing of a Brass Trapezoidal Screw Nut with an appropriately treated steel screw creates a highly balanced system. When combined with a surface-treated screw—such as nickel plated steel for corrosion resistance—the brass nut delivers stubborn performance for longevity and operational smoothness. This combination effectively minimizes overall system wear while maintaining precise linear motion.

Compared with bronze nuts, our Brass Nuts have obvious cost advantages while maintaining excellent self-lubricating and corrosion-resistant properties, which are more suitable for moderate load and speed scenarios that do not require heavy-duty bearing. Compared with steel nuts, brass nuts have better anti-galling properties and natural lubricity, avoiding the need for external lubrication, which is more suitable for food, medical, and marine environments where lubricant contamination is not allowed. In addition, brass nuts are easier to process and customize, with shorter delivery cycles.
Yes, our brass nuts are especially suitable for marine and food processing environments. Made of high-quality brass alloy, they have inherent excellent corrosion resistance, which can resist the corrosion of seawater and food-grade media. For more harsh corrosive environments, we can also provide additional surface treatment services for the nuts. At the same time, the self-lubricating property of brass avoids the use of external lubricants, ensuring that there is no lubricant contamination in food processing scenarios, fully complying with industry hygiene standards.
Yes, we can provide matching standard 30° trapezoidal steel screws for our Brass Nuts to ensure perfect mating and optimal transmission performance. The surface treatment options for the matching steel screws include nickel plating, nitriding, and hard chrome plating—nickel plating is mainly used to enhance corrosion resistance (suitable for marine environments), while nitriding and hard chrome plating can improve the wear resistance of the screws, extending the service life of the entire motion conversion pair. You can choose the appropriate surface treatment according to your application scenario.

The service life of our Brass Trapezoidal Screw Nuts depends on the specific operating conditions (load, speed, environment, etc.). Under normal moderate load and proper use, the service life can reach 2-5 years. We provide professional after-sales maintenance suggestions: 1) Conduct periodic inspection of the nut’s wear condition (recommended every 6 months); 2) Avoid exceeding the dynamic allowable thrust specified in the product parameters; 3) For nuts used in harsh environments, clean the surface regularly to avoid debris accumulation. If you encounter any problems during use, our technical team will provide timely solutions.
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No.18, Kaifa East Road, Wanping Town, Wujiang District, Suzhou City, Jiangsu Province, China
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