Black zinc plated hexagonal nuts, draft beer mechanical parts, CNC machining service
| Dimension | Core Requirements | Selection and Processing Points |
|---|---|---|
| Material & Corrosion Resistance | Food‑grade corrosion resistance | Priority: 316L stainless steel (molybdenum‑containing, chloride‑ion pitting resistance) for CIP cleaning and chlorinated disinfection; 304 for general applications; 904L for highly corrosive conditions. |
| Structure & Precision | Reliable sealing, easy assembly | Hexagonal shape (spanner‑friendly, uniform tightening torque); thread precision 6H/5H, anti‑gall; with flat washers / locking parts for stress distribution. |
| Hygiene & Compliance | No residue, easy to clean | Surface roughness Ra ≤ 0.8 μm, no dead ends; compliant with FDA / GB 4806 food contact standards, avoiding heavy metal precipitation. |
| Mechanical Properties | Vibration resistance, pressure resistance | Property class A2‑70 (tensile strength ≥ 700 MPa); thick or locking nuts (e.g., nylon‑insert) for high‑vibration / high‑pressure pipelines. |
| Standard & Compatibility | Interchangeability, compatibility | Commonly used standards: GB/T 6170 (Type 1), GB/T 6175 (Type 2, for high‑strength bolts); sizes M6–M24 cover most applications. |
We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.
Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.
Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.
Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.
Our customers include Siemens, bo-sch, Foxconn, Panasonic Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.
| OUR CAPACITY | ||||
| Main product names: | Stainless steel screws, carbon steel screws, pins, rivets, nuts, | |||
| eccentric nails, embedded parts, and other fasteners. | ||||
| Business Type | Factory / Maufacture | |||
| Service | CNC Machining | |||
| Turning and Milling | ||||
| CNC Turning | ||||
| Cold heading | ||||
| stamping | ||||
| Assembly Service | ||||
| Material | 1). Aluminum: AL 6061-T6, 6063, 7075-T etc | |||
| 2). Stainless steel:303,304,304L,316L,316F,630,410,420,430, etc | ||||
| 3). Steel: 4140, Q235, Q345B,20#,45# 1215,12L14 ,1144,1006,1008,1010,1015,1018 ,10B21,1035,1065 etc. | ||||
| 4)Alloy steel:5140,4135,4140,3435,5120,415 ,435,440 etc | ||||
| 5). Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc | ||||
| 6). Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc | ||||
| 7). Copper, bronze, Magnesium alloy, Delrin, POM,Acrylic, PC, etc. | ||||
| Finish | Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish, | |||
| Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing, | ||||
| electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench), | ||||
| Electro Polishing,Chrome Plating, Knurl, Laser etch Logo, etc. | ||||
| Drawing format | STEP,STP,GIS,CAD,PDF,DWG,DXF etc or samples. | |||
| Tolerance | +/-0.01mm ~ +/-0.05mm | |||
| Surface roughness | Ra 0.1~3.2 | |||
| Inspection | Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier,CMM | |||
| Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge | ||||
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
Contact Us at Any Time