DIN ANSI JIS GB Cold Heading Fasteners Bolts M3 M5 M8 M12 M23 Hex Bolt Customized Stainless Steel Screw Bolt and Nut

Product Description

SEJOW - The Connective Force in Advanced Manufacturing

Beyond fasteners, we engineer critical connections that hold industries together. At SEJOW, every bolt, nut, and screw embodies our commitment to precision, strength, and relentless reliability.

 

Our core philosophy is built on Material Integrity, Precision Engineering, and Uncompromising Quality Control. We utilize high-grade alloys and advanced coatings to ensure corrosion resistance and extreme durability, even in the harshest environments. Our precision-rolled thread technology guarantees optimal fatigue resistance and consistent performance.

 

From the high-stakes assemblies in Automotive and Aerospace to the dynamic joints of Industrial Robotics and the demanding installations in Renewable Energy, SEJOW components are trusted where failure is not an option. We don't just supply parts; we deliver certified security and lasting performance.

SEJOW. Engineered for Critical Applications. Built for Reliability. We are the vital link powering the world's most ambitious machines and structures.
 

Product Description

Company Profile

          Sejow (Shenzhen) Industrial Co., Ltd. - Professional CNC Machining Factory
Your Trusted Partner for High-Quality CNC Machining & Precision Parts from China
Located in China's industrial hub of Shenzhen, we are dedicated to producing high-tolerance, precision components for a global clientele. Our core manufacturing is powered by Huizhou Chuanglixin Precision Manufacturing Co., Ltd., a subsidiary of Sejow, which is equipped with state-of-the-art machinery and operated by a highly skilled engineering team.
 
Our Manufacturing Capabilities & Core Products
We leverage cutting-edge technology to deliver excellence across a wide range of precision manufacturing services:
Precision CNC Machining Services: We excel in 3-axis, 4-axis, and 5-axis CNC milling and CNC turning, capable of handling complex geometries and tight tolerances (±0.01mm).
Custom Precision Components: We specialize in the production of encoder housings, sensor casings, communication device parts, and other critical mechanical components.
Dispensing Valve Design & Production: We offer end-to-end solutions for custom dispensing valves, from R&D and prototyping to mass production.



Material Expertise: We work with a wide range of materials including Aluminum Alloys, Brass, Copper, Stainless Steel, and various Engineering Plastics.

FAQ

A. About Our Products & Capabilities

1. What are your main machining capabilities?
We specialize in precision CNC milling and CNC turning services. We are equipped to handle 3-axis, 4-axis, and 5-axis machining, working with materials like aluminum, brass, stainless steel, and engineering plastics to produce high-tolerance components.
 
2. What is your standard tolerance?
Our standard machining tolerance is ±0.01 mm. We can achieve tighter tolerances for critical features upon request and based on a design review.
 
3. Can you machine custom parts from my drawings?
Absolutely. We are an OEM/ODM manufacturer. Simply provide your detailed 2D drawings or 3D CAD models (e.g., STEP, IGES files), and we will manufacture the parts to your exact specifications.
 
B. About Ordering & Payment
4. What is your MOQ (Minimum Order Quantity)?
We are flexible. We accept both low-volume prototype orders and high-volume production runs. The MOQ can be as low as 1 piece for prototyping, and we offer competitive pricing for mass production.
 
5. How can I get a quote?
Please send us your drawings, along with information on material, surface treatment, and required quantity. We typically provide a detailed quotation within 1-2 business days.
 
6. What payment terms do you accept?
We accept T/T (Bank Transfer). A deposit is required to initiate production, with the balance paid before shipment.

C. About Shipping & Logistics

7. How do you handle shipping?
We have extensive experience in international shipping. We can ship samples and small batches via express couriers like DHL/UPS. For large production orders, we arrange sea or air freight based on your needs, with FOB, CIF, or EXW terms available.

 

8. What is your lead time?
For prototype orders, lead time is typically 7-15 days. For mass production, it depends on the order quantity and complexity, generally ranging from 3-5 weeks. We will provide a precise schedule with your quote.

 

D. About Quality & After-Sales
9. How do you ensure quality control?
Quality is integral to our process. We perform a First Article Inspection (FAI), in-process checks, and a final random inspection before shipment. We can provide inspection reports and are compliant with ISO 9001 quality management standards.

 

10. What if I receive defective parts?
We stand behind our quality. If any parts are found to be defective due to our manufacturing process, please notify us within 12 months of delivery with supporting evidence (photos/videos). We will promptly arrange to re-manufacture or repair the defective units.