Size: custom thread / drawing-based size
Description: External hex PP screw for positions that need wrench tightening while still avoiding metal corrosion in PCB wet-process equipment.
Common Materials and Characteristics
Stainless Steel (SUS304/SUS316): Excellent corrosion resistance and high strength, suitable for chemical environments.
Titanium Alloy: Lightweight, high strength, and corrosion resistance, suitable for high-end equipment or specialized applications.
PP (Polypropylene): Lightweight, acid and alkali resistant, and chemically resistant, suitable for general corrosive environments and non-high-strength connections.
Common Types
Flat-head screws, round-head screws, and butterfly screws are available, depending on the equipment structure and assembly requirements.
General Parameters
Thread sizes range from M6 to M16, and lengths can be customized to meet installation requirements.
| Parameter | Specification |
| Model / Size | custom thread / drawing-based size |
| Product Type | external hex screw |
| Recommended Material | PP |
| Main Function | tool-tightened PP fastener for medium-load wet-process fixing points |
| Application Environment | PCB wet-process equipment / horizontal conveyor line |
PP External Hex Screw is built around tool-tightened PP fastener for medium-load wet-process fixing points. In practical use, useful around bearing seats, shield brackets, and structural fixtures where hand screws are not firm enough. PP External Hex Screw selection for tool-tightened PP fastener for medium-load wet-process fixing points depends on custom thread / drawing-based size, material choice, mounting position, and the buyer’s real equipment environment rather than product appearance alone.
For PCB wet-process equipment, chemical exposure, humidity, and repeated maintenance can make PP External Hex Screw fail earlier than buyers expect when fit is wrong. Metal screws may corrode or contaminate the area, while a hand screw may not provide enough tightening force. For PP External Hex Screw, the detail page therefore needs to make the exact use position and confirmation method clear.
For PP External Hex Screw used as tool-tightened PP fastener for medium-load wet-process fixing points, the core signal is controlled tightening: QXY needs to connect wrench access, material strength, and corrosion resistance to the exact machine position. For PP screws, QXY emphasizes material selection, thread customization, and replacement according to existing equipment drawings. For PP External Hex Screw in this PP / external hex screw use case for tool-tightened PP fastener for medium-load wet-process fixing points, buyers should provide the old screw, thread dimensions, torque or load expectations, and photos of the fastening point.
To provide high-precision, high-performance PCB equipment accessories, empowering the global electronics manufacturing industry to achieve efficient production.