PEEK Hex Head Screws, also referred to as PEEK hex bolts, hexagon head screws, and hex fasteners, are high-performance polymer fasteners manufactured in compliance with DIN933 and ISO4014 standards. These external hex head fasteners replace metal bolts in extreme working conditions where insulation, non-magnetic performance, corrosion resistance and high-temperature stability are required. GuangZhou Ideal, as a PEEK screw manufacturer, we supply virgin unfilled PEEK, carbon-filled PEEK and glass-filled PEEK grades with standard stock sizes and fully customizable CNC machining service.
PEEK Hex Head Screws are non-metallic external hex fasteners for applications requiring insulation, non-magnetic performance, chemical resistance and high-temperature stability. Ideal Plastic is a China manufacturer supplying PEEK components through CNC machining, injection molding and other specialty engineering plastic processes, with sizes available from M2 to M12.
| Product Name | PEEK Hexagon Head Screws |
| Material | Virgin PEEK, Unfilled PEEK, Fiberglass Filled PEEK |
| Color | Black, Beige (Custom colors available) |
| Size | Metric (Mainstream stock M2~M12), Imperial (Customized for North American equipment) |
| Standard | DIN933 / DIN931 |
| Coaxiality | Hexagon head and screw coaxiality ≤0.03mm |
| Surface Roughness | General industrial conditions: Ra3.2 6.3μm; Semiconductor vacuum, cleanroom equipment: Ra≤1.6μm |
| Thread Accuracy | Metric thread; External thread standard: 6h; Precision orders can reach 6g. |
PEEK Hex Head Screws are external hexagon fasteners designed for applications where conventional metal hardware can interfere with electrical, magnetic, corrosive or temperature-sensitive environments. Ideal Plastic works with specialty engineering plastics and provides custom component machining and injection molding, supported by CNC machine tools, machining centers, testing equipment and a Class 100,000 dust-free injection molding workshop.
The fastener consists of an external hexagonal drive head and a threaded screw section. The hexagonal head allows torque to be applied with a socket or wrench, while the threaded section engages with a nut or threaded hole for securing components. The available structure can be adapted to the intended assembly requirements through machining.
The screw section can be produced as a full-thread or partial-thread structure. The supplied product description specifies a chamfered thread end and identifies DIN933 and DIN931 as the applicable standards. For assemblies using a complete non-metallic fastening system, the fastener can be paired with PEEK hexagonal nuts, PEEK flat washers and PEEK spring washers.
PEEK is a semi-crystalline high-performance engineering plastic. Its properties make it suitable for fastening situations where electrical insulation, non-magnetic behavior, chemical resistance and temperature resistance are more important than the characteristics normally associated with metal fasteners.
1. Temperature resistance: The supplied specification gives a long-term continuous operating range of -40℃ to 260℃ and a short-term peak temperature of 300℃. Dimensional stability, creep resistance and resistance to loosening under long-term stress are important considerations when the fastener is exposed to elevated temperatures.
2. Mechanical properties: PEEK provides high tensile and flexural strength with toughness above that of ordinary engineering plastics. Pure PEEK provides good impact resistance, while carbon-fiber and glass-fiber modification can increase rigidity, compressive strength and wear resistance.
3. Electrical and electromagnetic properties: Pure PEEK provides electrical insulation and is non-magnetic. This makes it suitable for assemblies where metal fasteners could introduce unwanted magnetic or electrical effects. Carbon-fiber-filled PEEK provides ESD protection but does not retain the same insulating characteristics as pure PEEK.
4. Vacuum characteristics: Virgin PEEK is specified for low ion dissolution and low outgassing requirements. This is relevant to semiconductor vacuum chambers and optical equipment where contamination from fastening components needs to be controlled.
5. Dimensional stability: The material has a low coefficient of thermal expansion. Annealing and stress relief are used to reduce deformation during thermal cycling and support precision assembly requirements.
These properties should be considered together with the actual working temperature, load, assembly method and environmental conditions. PEEK is not a direct replacement for metal in every mechanical application, particularly where ultra-high impact or heavy-duty vibration is involved.
Different PEEK grades are selected according to the electrical, mechanical, wear and processing requirements of the assembly. The available material options include virgin or unfilled PEEK and fiberglass-filled PEEK, while carbon-fiber-filled PEEK is identified for applications requiring increased rigidity, wear resistance and ESD protection.
| Material | Main characteristics | Typical selection consideration |
| Pure / Virgin PEEK | Electrical insulation, non-magnetic performance, low precipitation and good impact resistance | Insulation, non-magnetic, low-emission and sterilization requirements |
| Carbon Fiber PEEK | Higher rigidity, wear resistance and stable ESD protection | Anti-static, wear-resistant and repeated assembly/disassembly requirements |
| Glass Fiber PEEK | Higher rigidity, compressive strength and wear resistance | High rigidity and high-temperature fixing requirements |
For vacuum, semiconductor and optical applications, the supplied selection guidance specifies virgin material together with annealing and cleanroom cleaning. For high-volume general industrial parts, standard injection molding may be considered. Confined spaces can use thin-head custom structures, while vacuum decompression requirements can be addressed with a central through-hole ventilation structure.
The production of PEEK fasteners requires more controlled processing than ordinary plastic parts because PEEK is a semi-crystalline engineering polymer. CNC machining and injection molding are both part of Ideal Plastic's documented processing capabilities. The company operates CNC machine tools, CNC machining centers, four- and five-axis machining centers, engraving equipment, laser cutting equipment and a Class 100,000 dust-free injection molding workshop.
For precision fastening components, the supplied production description identifies several important process considerations:
1. Material preparation: Virgin PEEK can be selected where low gas emission and low ion precipitation are required.
2. Stress control: Pre-treatment annealing and post-molding annealing are specified to reduce springback, deformation and cracking during high-temperature use.
3. Thread control: Metric coarse right-hand threads are identified as the primary thread configuration, with full or chipped threads, a 45° chamfer at the end and no more than two invalid threads.
4. Gauge inspection: Go/no-go gauges are inspected and certified to maintain consistent thread tightness.
5. Surface condition: Finished parts are checked for flat hexagonal edges and for the absence of chipped corners, whitening, carbonization and cracks. Threads should be free from burrs, scratches and missing material.
6. Clean handling: Ordinary industrial parts receive standard dust removal. Vacuum, semiconductor and medical parts require ultrasonic cleaning, dust-free drying and independent vacuum packaging according to the supplied process description.
Ideal Plastic states that its company was registered in Hong Kong in 2011, with its factory and R&D center located in Huangpu District, Guangzhou, China. The company reports a technical R&D team of more than 100 people and frontline production technicians, together with professional quality inspection equipment. Its documented management and product credentials include ISO quality management system certification and SGS, CE and RoHS certifications, with products also stated to comply with REACH and EN71 environmental standards.
PEEK Hex Head Screws are intended for equipment assemblies where the properties of metal fasteners can create limitations. The supplied application list covers semiconductor vacuum chambers, MRI medical imaging equipment, new energy battery modules, chemical corrosion-resistant flanges, precision frames for aerospace drones and electronic anti-static fixtures.
1. Semiconductor equipment: Virgin PEEK with low emission characteristics can be considered for vacuum-related assemblies where particulate and precipitation control are important.
2. Medical equipment: The non-magnetic characteristics of pure PEEK are relevant to MRI equipment where metallic fastening components may interfere with the operating environment.
3. Chemical equipment: PEEK's chemical resistance makes the material suitable for fastening applications involving corrosive environments, subject to compatibility with the specific chemical medium.
4. Electronic fixtures: Pure PEEK provides electrical insulation, while carbon-fiber-filled PEEK can be selected where ESD protection and increased rigidity are required.
5. New energy equipment: The non-metallic structure and temperature resistance make PEEK fastening components applicable to selected battery module assemblies where the material requirements match the operating conditions.
The application should always be evaluated against the actual temperature, mechanical load, vibration, chemical exposure and assembly requirements. The supplied information specifically excludes ultra-high impact and heavy-duty vibration applications because PEEK does not provide the same toughness as metal bolts.
The correct grade and structure depend on the environment rather than simply the required screw size. The following selection points follow the supplied product guidance.
1. Insulation and non-magnetic requirements: Select a pure natural PEEK CNC model where electrical insulation, non-magnetic behavior, low emission or sterilization requirements are important.
2. Anti-static and wear requirements: Carbon-fiber-filled PEEK is suitable where stable ESD protection, higher rigidity, wear resistance and repeated assembly or disassembly are required.
3. High rigidity: Glass-fiber-filled PEEK can be considered where rigidity, compressive strength and high-temperature fixing are important.
4. Vacuum and semiconductor use: The supplied guidance calls for virgin material, annealing and cleanroom cleaning for vacuum, semiconductor and optical applications.
5. General industrial production: Standard injection-molded PEEK can be considered for high-volume general industrial parts.
6. Restricted installation space: Thin-head custom PEEK structures can be used where available clearance is limited.
7. Vacuum decompression: A central through-hole ventilation structure can be specified where ventilation through the fastener is required.
For non-standard dimensions, fine threads, thin heads, length changes or central ventilation holes, CNC machining provides a practical route for customized structures without requiring a dedicated injection mold for each geometry.
Correct installation is important because PEEK fasteners have different mechanical behavior from stainless steel and alloy steel bolts. Torque, tool selection, thread alignment and assembly speed should therefore be controlled according to the properties of the polymer rather than copied directly from metal fastening practice.
1. Use controlled torque: A torque-controlled wrench should be used. Excessive tightening force can damage or deform the fastener.
2. Avoid impact tools: Pneumatic impact wrenches and electric impact screwdrivers are not recommended because instantaneous impact can crack the head or damage the threads.
3. Control assembly speed: The supplied specification recommends an assembly speed of 10–20 rpm. Excessive frictional heat can soften and deform PEEK threads.
4. Start the thread manually: Guide the threads first and pre-tighten 2–3 turns so that the screw and mating thread remain coaxial. Forced tightening can damage the thread profile.
5. Control mating depth: Where a nut or self-tapping locking structure is not used, the supplied guidance recommends a mating depth of no more than 20 mm to reduce the risk of cumulative pitch errors, locking or breakage.
The installation method should also account for washer selection and thermal conditions. PEEK fasteners should not simply be installed using torque values developed for metal bolts.
PEEK is a high-performance thermoplastic polymer, but its mechanical response is fundamentally different from metal fasteners. The supplied precautions identify several conditions that require particular attention during equipment design and assembly.
1. Impact and vibration: The fasteners are not suitable for equipment exposed to ultra-high impact or heavy-duty vibration where metal fastener toughness is required.
2. Torque: Metal bolt torque standards should not be directly applied to PEEK fasteners.
3. Chemical exposure: The supplied guidance states that the material is not suitable for strong oxidizing agent environments.
4. Wet machining conditions: Direct assembly with water-cooled or wet-cooled machined parts should be avoided according to the supplied precautions because residual internal stress can affect the component.
5. Washer compatibility: Metal hard washers should not be used directly without appropriate cushioning because indentation and stress concentration can occur.
These precautions are particularly relevant when the fastener is used in precision equipment. Matching the material grade, structure and assembly method to the working environment helps reduce risks such as head damage, thread stripping, creep-related loosening and cracking after thermal cycling.
Ideal Plastic operates as a specialty engineering plastics manufacturer rather than a fastener-only production site. Guangzhou Ideal Plastic Technology Co., Ltd. develops and produces semi-finished profiles and custom components made from PEEK, PAI, PI, PPS, PPSU and PEI, using extrusion, injection molding, compression molding, machining and laser cutting processes.
The company's production equipment includes profile production lines, CNC machine tools, CNC machining centers, four- and five-axis machining centers, engraving machines, laser cutting equipment, injection molding facilities and testing equipment. This combination supports both semi-finished engineering plastic profiles and customized machined or molded components.
For quality management, the company states that it controls processes from raw material procurement and production testing through multiple final-product tests. Its website also records ISO quality management system certification and SGS, CE and RoHS certifications. Products are stated to comply with REACH and EN71 environmental standards.
Its customer coverage includes domestic Chinese markets as well as Europe, the United States, the Middle East, Japan, South Korea and Southeast Asia. The factory and R&D center are located in Huangpu District, Guangzhou, providing a documented production base for customized engineering plastic components.
For PEEK fastener projects, the relevant technical information should include material grade, size, thread standard, surface roughness, dimensional requirements, working temperature, environmental conditions and any cleaning or packaging requirements. These details determine whether CNC machining, injection molding or another processing route is appropriate.
A1: Pure PEEK can be disassembled and reused multiple times. Carbon-fiber PEEK provides higher wear resistance, but repeated use under high-temperature creep conditions is not recommended.
A2: Pure PEEK is translucent and contains no metal components, so it is not visible on X-rays. Imaging fillers can be added when a specific imaging function is required.
A3: The supplied information identifies uneven crystallization, residual stress and micro-venting as concerns. CNC machining and annealing are therefore preferred for high-vacuum and low-precipitation requirements.
A4: Pure PEEK provides insulation, non-magnetic performance and low precipitation. Carbon-fiber PEEK provides higher rigidity, wear resistance and ESD protection but is no longer electrically insulating.
A5: CNC machining is preferred for small batches, non-standard fine threads, vented holes and high-purity precision components. Injection molding can be considered for large-volume standard industrial parts.
A6: Yes. The supplied information supports CNC customization for fine threads, thin heads, different lengths and central ventilation holes. Standard non-standard sampling is stated as 3–7 days, while large-volume production follows the agreed delivery schedule.
