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Lightweght Through Hole Screws Chemical Nuts CNC Turning Service For Precision Hardware
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Lightweght Through Hole Screws Chemical Nuts CNC Turning Service For Precision Hardware
| Place of Origin | GuangDong Dongguan |
| Brand Name | SITUO |
| Certification | ISO9001 & TS16949 |
| Model Number | ST-130006 |
Product Details
Material:
Carbon Steel
Category:
Screws
Surface Treatment:
Customized
Sample Period:
10 To 15 Days
Precision:
Min0.001
Head Shape:
Customized
Threadtype:
M6
Packing:
Carton
Application:
Chemical Processing Equipment
Weight:
Lightweght
Corrosionresistance:
High
Usage:
Chemical
Origin:
China
Material Grade:
SUS316
Productname:
Chemical Hardware
Highlight:
lightweght Through hole screws
,Through hole screws Customized
,alkali resistant CNC turning service
Payment & Shipping Terms
Minimum Order Quantity
1PCS
Price
5-10 USD per item
Packaging Details
Communication
Delivery Time
Communication
Payment Terms
T/T
Supply Ability
10000PCS per day
Product Description
Through-hole screws, chemical nuts, CNC turning service for precision hardware
Stainless Steel Machined Pins
Applications, Characteristics & Advantages in Chemical Equipment Hardware
- Application Scenarios of Stainless Steel Machined Pins in Chemical Equipment
Stainless steel machined pins are key positioning and connecting components widely used in chemical equipment, featuring excellent corrosion resistance, high dimensional precision, and stable mechanical performance. They are particularly suitable for harsh working conditions such as corrosion, high temperature, low temperature, vibration, and frequent maintenance.
Main application scenarios include:
Positioning and locking of equipment shells and internals
Positioning of reactors, towers, filters, heat exchangers, and pressure vessels. They ensure accurate assembly and stable operation under pressure and vibration, and resist corrosion from chemical media.
Shaft connection and transmission in pumps and valves
Used as valve stems, pump shafts, connecting pins, and limit pins for various fluid control components. They maintain concentricity and wear resistance in long-term operation, and are compatible with corrosive liquids and gases.
Positioning for laboratory and pilot equipment
Precision positioning pins for stirrers, mixers, sampling devices, and testing instruments. They provide stable positioning with tight tolerances and support repeated assembly and disassembly.
Anti-corrosion and explosion-proof areas
Made of 304, 316L, titanium alloy, and other corrosion-resistant materials, they are widely used in strong acid, alkali, salt spray, and chlorine-containing working environments.
Non-sparking alloy pins can be used in explosion-proof zones to improve safety.
Modular chemical equipment assembly
Positioning and connecting pins for modular units such as filter components, separation devices, and pipe modules. They improve assembly efficiency and interchangeability while ensuring structural stability.
- Core Characteristics of Stainless Steel Machined Pins
High corrosion resistanceMainly made of 304, 316L stainless steel, with passivation, electropolishing, or pickling surface treatment.Resistant to acid, alkali, salt, and chemical media, suitable for long-term service in harsh chemical environments.
High precision and good concentricity
CNC machined with tight dimensional tolerances and excellent roundness, straightness, and coaxiality.
Ensures stable fit, smooth rotation, and reliable positioning in precision components.
High strength and wear resistance
Solid bar machining ensures uniform internal structure, high mechanical strength, and good fatigue resistance.
Suitable for rotating, reciprocating, and load-bearing parts in equipment.
Stable anti-loosening and anti-falling performance
Can be designed with grooves, steps, threads, or locking structures to prevent pin displacement or falling under vibration.
Improves operational safety and reduces maintenance frequency.
Good cleanability
Smooth surface, no burrs, no dead zones, easy to clean and sterilize.
Suitable for clean areas in chemical, pharmaceutical, and food industries.
Strong customization capability
Customizable in diameter, length, steps, grooves, threads, and chamfers to meet special structural requirements.
Ideal for non-standard chemical equipment.
- Core Advantages of CNC Machined Stainless Steel Pins
Compared with cold forming, stamping, or simple turning, CNC machining provides unique advantages:
Extremely high dimensional precision
Dimensional tolerance can reach ±0.01 mm, with stable straightness, coaxiality, and verticality.
Satisfies high-precision positioning and transmission requirements of chemical equipment.
Complex one-piece forming
One clamping completes multiple processes: turning, milling, grooving, threading, chamfering, and facing.
Produces complex-shaped pins that cannot be manufactured by conventional processes.
Complete material performance
Machined from solid stainless steel bar, maintaining original material density and mechanical properties.
No internal stress or cracks, ensuring reliability in high-pressure and corrosive environments.
Excellent surface quality
Achieves Ra ≤ 0.8 μm or higher surface finish, smooth, burr-free, and easy to passivate and polish.
Improves corrosion resistance and cleanability.
Flexible small-batch production
Suitable for small-batch, multi-variety, customized production commonly required in chemical equipment.
Short lead time, stable quality, and high consistency.
Quality control and traceability
Full-process CNC parameter control ensures stable quality.
Supports complete inspection reports to meet GMP, FDA, and equipment quality system requirements.
- Selection and Processing Guidelines for Chemical Equipment
Material selection
- General corrosion environment: 304 stainless steel
- Strong corrosion / chloride ion environment: 316L stainless steel
- High-corrosion and high-temperature conditions: titanium alloy, Hastelloy, etc.
- Explosion-proof areas: non-sparking copper alloy or special alloy
Structure and precision design
- Select appropriate tolerance grades according to fit: clearance fit, transition fit, or interference fit.
- Add locking grooves or steps for vibrating working conditions to improve anti-loosening performance.
Surface treatment
- Passivation: improves corrosion resistance
- Electropolishing: improves smoothness and cleanability
- Pickling: removes oxide scale and enhances corrosion resistance
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 | ||||
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Contact Us at Any Time
13925509630
No. 9, Shi bi One Alley, Zhangmutou Town, Dongguan City, Guangdong Province
