Stainless Steel ACME Trapezoidal Screw
Suzhou Maitu has a rich history of delivering customized solutions for durable Stainless Steel ACME Trapezoidal Screw. Each of our ACME screws is engineered to align with customers' unique design specs and performance needs, ensuring robust functionality that maintains longevity and operational stability—even when faced with tough conditions.
The China Stainless Steel ACME Trapezoidal Screw from Suzhou Maitu manufacturer stands as a sturdy, cost-efficient option for power transmission in demanding industrial settings. Unlike the standard metric trapezoidal screw with a 30° angle, the ACME thread has a 29° included thread angle and is mainly standardized under the American system. This unique design is crafted to offer increased strength and better load distribution, making it especially fit for applications that involve heavier loads and higher stress.
Product Advantages
① Superior Corrosion Resistance from Stainless Steel Material: Made of high-quality stainless steel (SS303, SS304, S316L), the product has inherent corrosion resistance, which can effectively resist humidity, chemical erosion, and harsh environmental damage—solving the problem that carbon steel ACME screws are easily corroded and worn, and ensuring stable operation in wet, corrosive industrial scenarios.
② Enhanced Strength & Fatigue Resistance: The combination of 29° ACME thread (wider root design) and stainless steel material further reduces stress concentration, improves load distribution capacity, and enhances fatigue resistance under repeated loading, making it more suitable for heavy-load, high-stress applications than standard carbon steel ACME screws.
③ Long Service Life & Low Maintenance: Stainless steel’s wear resistance and corrosion resistance, combined with the ACME thread’s durability, greatly extend the product’s service life; the surface of the stainless steel screw is smooth and not easy to accumulate dirt, reducing daily maintenance frequency and operation costs.
④ American Standard Compatibility & Global Adaptability: Standardized according to the American system, fully compatible with American-style equipment and components, avoiding matching problems in global procurement; stainless steel material is suitable for various industrial regions and climate environments, with strong adaptability.
⑤ High Transmission Precision & Stability: Through advanced thread rolling and CNC machining processes, the thread profile, pitch, and lead accuracy are strictly controlled, matching the efficiency requirements of plastic and bronze nuts, ensuring precise and stable power transmission in high-precision equipment.
Product Features
One notable built-in feature of the ACME thread shape is its longer fatigue life when subjected to repeated loads. Compared to the standard trapezoidal profile, the ACME thread’s wider root design lowers stress concentration and boosts durability. That said, when carbon steel is used as the base material, the ACME screw’s inherent strength can be greatly affected by environmental issues such as corrosion and wear. For this reason, advanced surface treatments are essential as a post-production step—they add a protective coating, which significantly extends the screw’s lifespan and improves its operational dependability.
Product Materials
Our Stainless Steel ACME Trapezoidal Screws could be made for various materials. Typically, our production in stainless steel is for SS303, SS304 and S316L. For enhanced performance and longevity, the nut is often made from a softer, wear-resistant material like brass, bronze or an engineered polymer. Quality control runs through every stage of production. We use GO/NO-GO gauges, inspection to verify dimensions and pitch accuracy. Each part is recorded for traceability under a full ISO9001 quality system. Before delivery, our team checks surface finish, lubrication, and straightness to ensure reliable movement performance.
Production Parameters
| MajorDiameter | Lead | Pitch | Start | PlasticNut Efficiency | Bronze Nut Efficiency | |
| In/mm | in | mm | mm | |||
| 1/4 6.35mm | 0.05 | 1.27 | 1 | 36.37% | 25.88% | |
| 0.0625 | 1.588 | 42.29% | 30.87% | |||
| 5/16 7.94mm | 0.07143 | 1.814 | 1 | 38.49% | 27.63% | |
| 0.25 | 6.35 3.175 | 2 | 67.32% | 55.22% | ||
| 3/8 9.525mm | 0.062 | 1.575 | 1 | 31.40% | 21.86% | |
| 0.08333 | 2.116 | 37.74% | 27.00% | |||
| 0.1 | 2.54 | 42.36% | 30.93% | |||
| 0.125 | 3.175 | 47.81% | 35.78% | |||
| 0.166 | 4.216 2.108 | 2 | 55.01% | 42.56% | ||
| 0.2 | 5.08 2.54 | 58.53% | 46.04% | |||
| 0.25 | 6.35 3.175 | 63.33% | 50.96% | |||
| 7/16 11.11mm | 0.08333 | 2.116 | 1 | 33.88% | 23.84% | |
| 1/2 12.7mm | 0.1 | 2.54 | 1 | 36.16% | 25.70% | |
| 0.2 | 5.08 2.54 | 2 | 51.58% | 39.27% | ||
| 0.25 | 6.35 3.175 | 58.24% | 45.75% | |||
| 5/8 15.875mm | 0.1 | 2.54 | 1 | 29.97% | 20.74% | |
| 0.125 | 3.175 | 35.96% | 25.53% | |||
| 0.2 | 5.08 | 48.81% | 36.69% | |||
| 0.2 | 5.08 2.54 | 2 | 46.41% | 34.51% | ||
| 3/4 19.05mm | 0.1 | 2.54 | 1 | 26.49% | 18.07% | |
| 0.166 | 4.216 | 38.42% | 27.62% | |||
| 0.2 | 5.08 | 43.50% | 31.93% | |||
| 0.333 | 8.46 4.23 | 2 | 54.88% | 42.43% | ||
| 7/8 22.225mm | 0.1667 | 4.2342 | 1 | 34.55% | 24.38% | |
| 1 25.4mm | 0.1 | 2.54 | 1 | 20.62% | 13.73% | |
| 0.167 | 4.2418 | 30.52% | 21.17% | |||
| 0.2 | 5.08 | 35.72% | 25.33% | |||
| 0.25 | 6.35 | 41.58% | 30.26% | |||
| 0.5 | 12.7 6.35 | 2 | 57.81% | 45.31% | ||
| 1-1/8 28.575mm | 0.2 | 5.08 | 1 | 32.77% | 22.95% | |
| 1-1/4 31.75mm | 0.2 | 5.08 | 1 | 30.29% | 20.99% | |
| 0.25 | 6.35 | 35.65% | 25.28% | |||
| 1-3/8 35mm | 0.25 | 6.35 | 1 | 32.76% | 22.94% | |
| 1-1/2 38.1mm | 0.1 | 2.54 | 1 | 14.70% | 9.55% | |
Customization Services
① Stainless Steel Material Customization: According to customers’ application scenarios (corrosion resistance requirements, load, temperature), we provide customized material selection—SS303 for general industrial scenarios, SS304 for medium corrosion resistance needs, and S316L for strong corrosion, high-temperature scenarios; we also support customized material thickness and processing accuracy.
② Product Specification Customization: Beyond the standard parameters (major diameter 6.35mm-38.1mm, lead 1.27mm-12.7mm), we support customized design of major diameter, lead, pitch, thread start number, and end machining (drilling, tapping, grooving) according to customers’ drawings and equipment requirements.
③ Nut Matching Customization: According to the stainless steel screw’s material and working conditions, we customize nut matching solutions—brass, bronze, or engineered polymer nuts, ensuring wear resistance and transmission efficiency, and solving the problem of matching between stainless steel screws and nuts.
④ OEM & Packaging Customization: We provide Stainless Steel ACME Trapezoidal Screw OEM services, including customized product labeling, logo printing, and packaging design, to meet the branding needs of global buyers; we also support customized packaging specifications according to transportation and storage requirements.
⑤ Technical Scheme Customization: Our professional engineering team provides customized technical schemes, including material selection, specification design, and installation guidance, to solve the pain points of customers in complex industrial scenarios (such as strong corrosion, heavy load, high precision).
Quality Assurance
① Strict Raw Material Inspection: All stainless steel raw materials (SS303, SS304, S316L) are inspected by professional equipment to ensure they meet international stainless steel material standards; each batch of raw materials has a detailed inspection report and traceability record.
② Full-Process Quality Control: Implemented under the ISO9001 quality management system, Stainless Steel ACME Trapezoidal Screw quality control runs through every production link—thread processing, dimension detection, surface finish inspection, and straightness testing; we use GO/NO-GO gauges to verify dimension and pitch accuracy, ensuring product consistency.
③ Professional Performance Testing: Each finished product undergoes strict performance testing, including corrosion resistance testing (for stainless steel material), thread accuracy testing, load-bearing capacity testing, and transmission efficiency testing, ensuring it meets the design requirements and industrial standards.
④ Traceability Management: Through the self-developed ERP system, each product is recorded in detail from raw material procurement, production processing to finished product delivery, realizing full-process traceability; customers can query the production and inspection records of their ordered products at any time.
⑤ Pre-Delivery Final Inspection: Before delivery, our professional QC team conducts a comprehensive inspection of each product, including surface finish, lubrication, straightness, and dimension accuracy, ensuring no unqualified products leave the factory.
FAQs
1. What is the lead time for customized stainless steel ACME trapezoidal screws?
The lead time depends on the complexity of customization: for standard specifications and standard stainless steel materials (SS303, SS304), the lead time is 7-10 working days; for non-standard specifications and special materials (S316L), the lead time is 10-15 working days; we will optimize the production schedule and feedback the production progress in real time to ensure on-time delivery.
2. Can you provide quality inspection reports and material certification?
Yes, we can provide detailed quality inspection reports (including dimension accuracy, thread accuracy, load-bearing capacity) and stainless steel material certification (such as SS304, S316L material certification) according to your requirements, all of which are compliant with ISO9001 quality standards and international industrial standards, ensuring product quality is traceable.
Why Choose Us
① 12-Year Professional Experience in Stainless Steel ACME Screw Production: We have focused on trapezoidal screw R&D and production for over 12 years, with rich experience in stainless steel ACME thread forming and material matching, mastering the core technology of stainless steel screw processing, and can provide professional solutions for global buyers.
② Advanced Production & Testing Equipment: Equipped with 10 professional production lines, including advanced thread rolling machines, high-precision CNC lathes, and stainless steel processing equipment, ensuring the precision of ACME threads and the quality of stainless steel materials; professional testing equipment (corrosion tester, thread profile detector) ensures each product meets international standards.
③ Perfect Customization & Technical Support: We have a professional technical team to provide one-stop customization services, from pre-sales consultation (material selection, specification design) to in-sales sample confirmation, and after-sales technical support (installation guidance, maintenance advice), solving all customization-related problems for customers.
④ Proven Market Reputation & Global Service: We have served over 5,000 domestic and foreign customers, completed over 80,000 pieces of overseas orders in the past 3 years, and our screws have been widely recognized in corrosive, heavy-load industrial scenarios; with factories in Suzhou and Dongguan, we can quickly respond to global procurement needs and ensure on-time delivery.
⑤ Cost-Effective Solutions: We have a mature supply chain of stainless steel raw materials, reducing production costs while ensuring product quality; we provide high-quality stainless steel ACME screws at competitive prices, helping customers reduce procurement costs.
How to maintain and extend their service life?
We will provide detailed maintenance guidelines of the Stainless Steel ACME Trapezoidal Screw: for general scenarios, regularly clean the screw surface to avoid dirt accumulation; for corrosive scenarios, regularly apply anti-corrosion lubricant to enhance corrosion resistance; avoid overloading during use, and check the thread and nut wear status regularly; our after-sales team can also provide on-site maintenance guidance if needed.
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No.18, Kaifa East Road, Wanping Town, Wujiang District, Suzhou City, Jiangsu Province, China
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