Custom CNC Machining Parts: Stainless Steel, Aluminum, Brass Turning & Milling. Rapid Prototyping and Custom CNC Service for 3D Model Micro Machining.
High Precision Commitment:
- Strict adherence to customer drawings and quality demands
- Tolerance control up to +/-0.005mm
- 100% inspection during production and final stages
- Professional consultation to optimize design and save costs
- Quality assurance in accordance with ISO9001
How is screw diameter measured?
The diameter refers to the threaded part thickness. Due to manufacturing tolerances, an 11mm screw might measure between 10.5mm and 10.75mm.
What is the difference in measuring screw lengths?
Countersunk (flat head) screws are measured by total length. Hex socket or round head screws are measured by the length of the shank only.
What do the bolt performance grades (e.g., 4.8, 8.8) represent?
The first number represents tensile strength (4 = 400MPa). The second number is the yield ratio (0.8). A grade 8.8 or higher is classified as a high-strength bolt.
What is "Pitch" in threading?
Pitch (denoted as "P") is the axial distance between adjacent threads.
How should I choose the right screw grade?
Grade 4.8 is standard for general use. Grade 8.8+ is recommended for mechanical equipment. Stainless steel is best for rust resistance.
Frequently Asked Questions
What is your standard production lead time?
Our typical delivery date ranges from 7 to 15 working days, depending on complexity and quantity.
What is the highest precision you can achieve?
We can achieve high-precision tolerances as tight as ±0.002mm to ±0.005mm using our advanced CNC machining centers.
Which drawing formats do you support?
We accept a wide range of formats including PDF, JPEG, AI, PSD, CAD, Dwg, Step, and LGS.
Do you provide surface treatments in-house?
Yes, we offer comprehensive finishing services including polishing, anodizing, heat treatment, powder coating, and various types of plating.
What are your quality control procedures?
We implement a 100% inspection policy. Our facility is equipped with CMM, projectors, salt spray testers, and automatic optical inspectors to ensure zero-defect delivery.
Are your materials compliant with international standards?
Yes, all our materials and surface treatments comply with RoHS and Reach Directives, ensuring environmental safety and international compliance.