CNC Machined Stainless Steel Large Screw with High Corrosion Resistance and ±0.01mm Tolerance for Precision Mechanical Fittings

Every screw thread is fully inspected with thread gauges after machining in strict accordance with metric thread standards. The go gauge can be fully and smoothly screwed in, while the penetration depth of the no-go gauge complies with industrial specifications.

This thoroughly avoids thread slipping, assembly jamming and uneven thread fitting clearance, making it suitable for scenarios requiring frequent disassembly, assembly and repeated adjustment of equipment.

Fixed tooling fixtures and standardized CNC programs are adopted in production. Core dimensions such as screw outer diameter, thread pitch diameter and step length are controlled within constant tolerance ranges.

Products from the same batch feature high dimensional consistency and excellent interchangeability for mass assembly, eliminating interference to the adjustment accuracy of positioning devices caused by dimensional fluctuations.

A refined deburring process is implemented after machining. No flash, burrs or sharp edges remain on the screw shaft, start/end of threads and head corners.

The evenly smooth surface will not scratch matched seals, pipes and equipment substrates during assembly, and resists dirt accumulation and rust during long-term service.

Working requirements: The screw bears heavy loads with high thread meshing precision to prevent loosening under long-term vibration. The burr-free smooth surface avoids abrasion of matched transmission bushings, and stainless steel material delivers resistance to oil stain and moisture corrosion.

Working requirements: Uniform dimensions ensure accurate adjustment stroke of valve blocks. Sharp burrs are eliminated to prevent damage to sealing gaskets and liquid leakage. Standard threads support frequent fine adjustment without jamming or rusting.

Working requirements: Interchangeable screws within one batch with tiny tolerance fluctuations to guarantee equipment positioning accuracy. The smooth surface facilitates routine disassembly, assembly and maintenance, reducing assembly wear loss.

Solution: Threads are precisely turned by CNC machines and fully inspected with thread gauges before delivery. Thread profile and pitch strictly follow metric standards to ensure even thread meshing and eliminate mass assembly defects.

Solution: Unified processing benchmarks and CNC programs are applied with full inspection of key dimensions. Tolerance ranges remain stable, and batch interchangeability is guaranteed to protect the adjustment precision of positioning devices from dimensional deviations.

Solution: A special deburring and polishing process is added to remove all flash and burrs on thread ports and screw shafts. The overall smooth surface protects sealing structures and maintains the sealing performance of equipment.