PTFE Socket Head Cap Screw
PTFE socket head cap screw is a high-performance fluoropolymer fastener designed for applications requiring outstanding chemical resistance, electrical insulation, ultra-low friction, and reliable non-metallic fastening. The PTFE socket head cap screw is manufactured from virgin polytetrafluoroethylene, offering excellent resistance to acids, alkalis, solvents, oxidizing media, moisture, and harsh industrial environments.
The PTFE socket head cap screw features a cylindrical head with an internal hex drive, allowing controlled installation with Allen keys. It is widely used in chemical processing, semiconductor equipment, pharmaceutical systems, laboratory instruments, water treatment, food equipment, marine engineering, and OEM manufacturing.
Product Overview
The PTFE socket head cap screw is engineered for corrosive and high-purity environments where metal screws may corrode, contaminate the system, or conduct electricity. Its cylindrical head provides a strong bearing surface, while the internal hex drive supports accurate installation in compact spaces.
Compared with PA66, PVC, and PVDF screws, the PTFE socket head cap screw offers superior chemical resistance and a wider service temperature range. Its non-stick surface and low friction also help reduce installation resistance.
As a premium industrial fastener, it is suitable for cleanroom equipment, chemical tanks, pumps, valves, filtration systems, and insulation assemblies.
Product Specifications
| Item | Description |
|---|---|
| Standard | DIN / ISO / Custom |
| Product Name | PTFE Socket Head Cap Screw |
| Material | Virgin PTFE |
| Thread Type | Metric Machine Thread / Custom |
| Head Type | Cylindrical Socket Head |
| Drive Type | Internal Hex / Allen |
| Diameter Range | M2–M12 |
| Length Range | 4mm–100mm |
| Surface Finish | Natural White |
| Strength Grade | Engineering Plastic Fastener |
| Thread Direction | Right Hand |
| Packaging | Bag, carton, tray, OEM packaging |
| Customization | Size, length, head dimensions, thread, packaging |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | 20–35 MPa |
| Yield Strength | Material grade dependent |
| Hardness | Shore D 50–65 |
| Density | Approx. 2.15–2.20 g/cm³ |
| Corrosion Resistance | Excellent |
| Operating Temperature | Approx. -200°C to 260°C |
| Electrical Insulation | Excellent |
| Manufacturing Standard | DIN / ISO / OEM drawing |
Materials and Manufacturing Process
Production starts with premium virgin PTFE resin selected for purity, chemical stability, and dimensional performance. The material is compression molded under controlled pressure and temperature. Then, CNC machining forms the cylindrical head, shank, internal hex socket, and thread profile.
For tight-tolerance requirements, secondary machining controls head height, socket depth, thread pitch, and overall length. After machining, parts are cleaned to remove residues and inspected for surface quality.
Each PTFE socket head cap screw is checked for thread accuracy, socket geometry, dimensional consistency, material appearance, and packaging condition.
Applications of the Product
PTFE socket head cap screws are widely used in construction, machinery, automotive electronics, renewable energy systems, petrochemical equipment, marine systems, food equipment, industrial equipment, chemical processing, semiconductor systems, pharmaceutical equipment, water treatment systems, and manufacturing systems.
They are especially suitable for pumps, valves, filters, laboratory fixtures, cleanroom tools, acid-resistant equipment, and electrical insulation assemblies.
Why Choose This Product
This product offers premium PTFE material, exceptional chemical resistance, excellent insulation, ultra-low friction, non-stick surface performance, stable operation across wide temperatures, long service life, bulk supply capability, OEM/ODM support, fast delivery, and export experience.
The PTFE socket head cap screw is ideal for buyers needing durable non-metallic fasteners in highly corrosive or high-purity environments.
Why Choose Flybear
Flybear provides professional industrial fasteners and engineering plastic fastening solutions.
Flybear offers manufacturing capability, inventory strength, custom production, engineering support, global supply ability, and technical consultation. We support OEM manufacturers, distributors, EPC contractors, and purchasing managers with reliable products based on drawings, samples, or application requirements.
Quality Inspection and Control
Quality control includes raw material verification, tensile testing, hardness testing, chemical resistance checks, thread gauge inspection, dimensional inspection, socket inspection, surface inspection, electrical insulation testing, and packaging inspection.
Production follows ISO quality system compliance to ensure stable batch quality and reliable industrial performance.
Selection Guide
When selecting PTFE socket head cap screws, consider thread diameter, length, head size, socket size, load requirement, chemical exposure, temperature, indoor or outdoor use, and matching nut or insert material.
For higher mechanical strength, PVDF or PEEK may be considered. For extreme chemical resistance and insulation, PTFE remains a preferred choice.
FAQ
What is PTFE material?
PTFE is a fluoropolymer with excellent chemical resistance, insulation, and low friction.
Why use PTFE screws instead of metal screws?
PTFE screws resist corrosion, provide insulation, and prevent metal contamination.
Are PTFE socket head cap screws suitable for chemical equipment?
Yes. They are widely used in chemical processing, semiconductor, and water treatment systems.
Can custom sizes be produced?
Yes. Custom size, thread, head dimensions, socket type, and packaging are available.
How to request quotation?
Send size, material, quantity, drawings, and application details.
The PTFE socket head cap screw provides chemical resistance, insulation, and reliable fastening for demanding industrial applications. For quotation, customization, and technical support, please Contact Us.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
