Do you provide custom sizes and bulk supply for hexagon head plastic screws?

Yes. As a manufacturer and supplier, Link Upon provides precision production for hexagon head plastic screws in high-performance engineering plastics (e.g., PEEK, PPS, PVDF), supporting B2B bulk orders and custom specification consultation for global industrial customers.

How do I choose the right engineering plastic fastener material for industrial environments?

We recommend materials based on long-term operating temperature and chemical media. For example, wet-process semiconductor equipment often uses PEEK or PVDF, while ultra-high temperature or strong chemical exposure may require PFA or self-lubricating TPI. Our team can help evaluate trade-offs in strength, cleanliness, and durability.

Hexagon Screw

ANSI, JIS, DIN, ISO
A complete range of plastic screws, bolts, nuts, sizes from M1.4 to M16.
Complete styles of screw heads are available for various equipment design requirements.

AMOUNT*

Hexagon Head Plastic Screws | Engineering Plastic Material Selection Guide

When selecting hexagon head plastic screws, choosing the appropriate engineering plastic material according to operating temperature, chemical exposure, and equipment conditions is essential. Proper material selection significantly extends service life, improves corrosion resistance, and ensures long-term fastening reliability in demanding industrial environments.

As a professional manufacturer and supplier of engineering plastic fasteners, Link Upon Advanced Material Corp. provides a comprehensive range of high-performance plastic screws and customised precision components. We support customers in maintaining stable fastening performance and long-term durability, even under harsh operating conditions.

High-Temperature Fasteners Chemical / Acid & Alkali Semiconductor & Precision Tools Manufacturer / Supplier

Benefits & Typical Applications of Hexagon Head Plastic Screws

Hexagon head plastic screws are commonly used where serviceability matters, tools are used for fastening, and controlled torque is required. Compared with metal screws, engineering plastic screws can offer:

Corrosion resistance, acid/alkali resistance, and chemical resistance
(for chemical equipment and wet process systems).
Electrical insulation and low thermal conductivity
(for electronics modules, control boxes, and sensor fixtures).
Lightweight and low metal-ion contamination
(for semiconductor tools, precision equipment, and special processes).
Self-lubrication, low wear, or low particle needs
(depending on material selection such as TPI, PTFE, PFA, etc.).

By selecting the right engineering plastic, you can match operating temperature, chemical media, mechanical load, and cleanliness requirements to choose the best solution for hexagon head screws.

Common Material Scenarios: High Heat, Chemicals, Self-Lubrication & Lightweight

High-Temperature Plastic Screws

For long-term operation around 150–260°C or under thermal cycling, consider high-temperature engineering plastics such as PEEK, PEEK+GF, PPS, PPS+GF, self-lubricating TPI, PTFE, and PFA.

Chemical Resistance & Semiconductor Wet Processes

In acids/alkalis, oxidizers, solvents, or semiconductor wet-process chemistries, PVDF, PTFE, PFA, PCTFE, and select grades of PEEK/PPS can balance chemical resistance with structural strength.

Self-Lubrication, Low Friction & Lightweight

Where wear reduction, low particles, or oil-free operation is required, self-lubricating TPI, PTFE, and other engineering plastics provide low friction and durability—while keeping the weight benefits of plastic fasteners.

※ The “long-term service temperature” below is for reference. Actual performance depends on geometry, load, chemical media, and environment.

Engineering Plastic Material Guide | Temperature Range & Application Overview

Material selection is critical to service life, reliability, and safety. Based on Link Upon’s manufacturing and supply experience, the following overview helps you compare engineering plastics by long-term service temperature and typical applications—so you can quickly choose the right material for plastic screws, nuts, and precision parts.

PEEK | Long-term service temperature: approx. 240°C

Key features: Semi-crystalline polymer with high temperature capability, rigidity, creep resistance, and radiation tolerance.

Typical uses: Semiconductor equipment, aerospace, automotive electronics, oil & gas, medical, and food machinery.

PPS | Long-term service temperature: approx. 200°C

Key features: High heat resistance, corrosion resistance, strong mechanical properties, and dimensional stability.

Typical uses: Electronic components, automotive parts, and chemical equipment parts.

PVDF | Long-term service temperature: approx. 150°C

Key features: Fluoropolymer with strong chemical resistance, weatherability, electrical insulation, and low wear.

Typical uses: Acid/alkali processes, semiconductor wet benches, and chemical equipment.

PP | Long-term service temperature: approx. 90°C

Key features: Lightweight, chemical resistance, hydrolysis resistance, and good electrical properties.

Typical uses: Food machinery, pharmaceutical equipment, and chemical-environment components.

PPGF | Long-term service temperature: approx. 120°C

Key features: Glass-fiber reinforced PP with higher strength and low water absorption.

Typical uses: Structural parts, electrical insulation parts, and chemically exposed components.

PPS+GF | Long-term service temperature: approx. 240°C

Key features: Glass-fiber reinforced PPS with heat resistance, corrosion resistance, high rigidity, and stability.

Typical uses: Automotive parts, electrical components, and chemical equipment parts.

RENY | Long-term service temperature: approx. 105°C

Key features: Heat-resistant nylon with glass fiber reinforcement, good strength, and oil/heat resistance.

Typical uses: Automotive, general machinery, electronics, and construction materials.

PVC | Long-term service temperature: approx. 60°C

Key features: Acid/alkali resistance, weatherability, and good electrical insulation.

Typical uses: Components exposed to chemical solvents, building materials, and cables.

TPI (Self-lubricating) | Long-term service temperature: approx. -269 to 280°C

Key features: Ultra-wide temperature range, wear resistance, self-lubrication, chemical resistance, and low outgassing in high vacuum.

Typical uses: Precision sealing, vacuum equipment, and high-speed moving parts.

PTFE | Long-term service temperature: approx. -190 to 260°C

Key features: Fluororesin with broad chemical resistance, non-stick surface, and lubricity.

Typical uses: Seals and washers, sliding parts, high-temperature and chemical environments.

PCTFE | Long-term service temperature: approx. -200 to 200°C

Key features: Low permeability, cold/heat resistance, and good weatherability.

Typical uses: Semiconductor tools and hermetic components.

PEEK+GF | Long-term service temperature: approx. 260°C

Key features: Glass-fiber reinforced PEEK with high rigidity, high heat resistance, and strong chemical resistance.

Typical uses: High-temperature, high-load structural parts; screws/nuts for chemical environments.

PFA | Long-term service temperature: approx. -200 to 260°C

Key features: High chemical resistance, weatherability, wide temperature capability, and high cleanliness.

Typical uses: Pharmaceutical processes and semiconductor wet-process equipment.

NYLON | Long-term service temperature: approx. 70°C

Key features: High strength, wear resistance, and low coefficient of friction.

Typical uses: Mechanical engineering, food equipment, aerospace and automotive components.

Hexagon Head Plastic Screws Metric Size Table (Metric sizes, diameter × length, mm)

The table below lists standard metric sizes. Unit: mm (diameter × length). For special lengths, materials, head types or customized spec., please contact us.

SPEC.	Length	SPEC.	Length
4×4	5×16	6×30	8×55
4×5	5×18	6×35	8×65
4×6	5×20	6×40	8×100
4×8	5×25	6×45	10×15
4×10	5×27	6×50	10×20
4×12	5×30	6×55	10×25
4×13	5×35	8×10	10×30
4×14	6×4	8×12	10×40
4×15	6×5	8×15	10×50
4×17	6×6	8×16	10×60
4×18	6×8	8×18	10×65
4×20	6×10	8×20	12×20
4×21	6×12	8×25	12×25
4×25	6×15	8×28	12×30
4×30	6×16	8×30	12×35
5×5	6×18	8×33	12×40
5×6	6×20	8×35	12×65
5×8	6×22	8×40	12×80
5×10	6×25	8×45	12×100
5×12	6×27.5	8×50	16×40
5×15

SPEC.

Length

SPEC.

Length

4×4

5×16

6×30

8×55

4×5

5×18

6×35

8×65

4×6

5×20

6×40

8×100

4×8

5×25

6×45

10×15

4×10

5×27

6×50

10×20

4×12

5×30

6×55

10×25

4×13

5×35

8×10

10×30

4×14

6×4

8×12

10×40

4×15

6×5

8×15

10×50

4×17

6×6

8×16

10×60

4×18

6×8

8×18

10×65

4×20

6×10

8×20

12×20

4×21

6×12

8×25

12×25

4×25

6×15

8×28

12×30

4×30

6×16

8×30

12×35

5×5

6×18

8×33

12×40

5×6

6×20

8×35

12×65

5×8

6×22

8×40

12×80

5×10

6×25

8×45

12×100

5×12

6×27.5

8×50

16×40

5×15

Hexagon Head Plastic Screws Inch Size Table (Inch sizes, UNC / UNF)

The table below lists common inch thread sizes (UNC / UNF) and standard lengths (inch). Other thread pitches, head types, materials or customized spec. please contact us.

SPEC.	Length	SPEC.	Length
#8-32UNC	3/8"	1/4-20UNC	1/2"
1/2"	3/4"
5/8"	1"
3/4"	1-1/4"
#8-36UNF	1/2"	1-1/2"
5/8"	2"
3/4"	1/4-28UNF	3/4"
#10-24UNC	3/8"	1"
1/2"	1-1/2"
5/8"	3/8-16UNC	1"
3/4"	1-1/2"
1"	3/8-24UNF	1"
#10-32UNF	3/8"	1-1/2"
1/2"	5/16-18UNC	1"
5/8"	1-1/2"
3/4"	5/16-24UNF	1"
1"	1-1/2"

SPEC.

Length

SPEC.

Length

#8-32UNC

3/8"

1/4-20UNC

1/2"

3/4"

5/8"

3/4"

1-1/4"

#8-36UNF

1/2"

1-1/2"

5/8"

3/4"

1/4-28UNF

3/4"

#10-24UNC

3/8"

1/2"

1-1/2"

5/8"

3/8-16UNC

3/4"

1-1/2"

3/8-24UNF

#10-32UNF

3/8"

1-1/2"

1/2"

5/16-18UNC

5/8"

1-1/2"

3/4"

5/16-24UNF

1-1/2"