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

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

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

We recommend material based on your long-term service temperature and chemical media. For example, PEEK or PVDF is common in semiconductor wet processes, while PFA or self-lubricating TPI may be recommended for high-temperature or strong acid/alkali environments. Our experienced team can help evaluate your application.

Slotted Hex 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.

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Slotted Hexagon Head Plastic Screws｜Engineering Plastic Material Selection Guide

When selecting hexagon head slotted plastic screws, choosing the appropriate engineering plastic material based on operating temperature, chemical exposure, and equipment conditions is essential. Proper material selection effectively extends service life, enhances 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. offers a wide range of high-performance plastic screws and customised precision components. We help customers achieve stable fastening performance and long-term durability, even under harsh operating conditions.

High-temperature Plastics Chemical Resistance Semiconductor & Precision Manufacturer / Supplier

Advantages & Typical Applications

Slotted hexagon head plastic screws are widely used in components that require tool-driven fastening and torque control, especially where maintainability is important. Compared with metal screws, engineering plastic screws can provide:

Corrosion resistance and chemical resistance
(for chemical equipment and wet process systems).
Electrical insulation and low thermal conductivity
(for electrical modules, control boxes, and sensor mounting).
Lightweight design and metal-ion control
(for semiconductor, precision tools, and special processes).
Self-lubrication, low wear, or low particle generation
(material-dependent, e.g., TPI, PTFE, PFA).

By selecting the right engineering plastic, you can optimise performance based on service temperature, chemical media, mechanical load, and cleanliness requirements.

Material Selection Scenarios

High-temperature Applications

For long-term operation around 150–260°C with thermal cycling, evaluate PEEK, PEEK+GF, PPS, PPS+GF, self-lubricating TPI, PTFE, and PFA.

Chemical Resistance & Semiconductor Wet Processes

For acids/alkalis, oxidisers, organic solvents, and wet chemical processes, consider PVDF, PTFE, PFA, PCTFE, and selected grades of PEEK/PPS for a balance of chemical resistance and structural strength.

Self-lubrication, Low Friction & Lightweighting

When you need to reduce wear, minimise particles, or avoid external lubrication, self-lubricating TPI, PTFE, and certain engineering plastics can provide low friction and stable performance.

※ The “Long-term Service Temperature” below is for general reference; final selection depends on part geometry, load, chemical media, and environment.

Engineering Plastics Material Guide | Temperature Range & Applications

Material selection: multiple options available depending on environment and temperature requirements.

PEEK | Long-term Service Temperature: 240°C

PEEK is a semi-crystalline engineering plastic with excellent toughness, stiffness, creep resistance, and radiation resistance, suitable for high-temperature and chemical process applications.

PEEK screws, nuts, and precision parts are widely used in semiconductor equipment, aerospace, automotive electronics, oil & gas, medical devices, and food processing equipment.

PPS | Long-term Service Temperature: 200°C

PPS is a high-performance thermoplastic with heat resistance, corrosion resistance, and strong mechanical properties, offering electrical performance and dimensional stability for electronics, automotive, and chemical machinery parts.

PVDF | Long-term Service Temperature: 150°C

PVDF is a fluoropolymer featuring excellent chemical resistance, weatherability, heat resistance, electrical insulation, and wear properties—ideal for acids/alkalis, wet processes, and chemical industry equipment parts.

PP | Long-term Service Temperature: 90°C

PP provides good tensile properties, chemical resistance, hydrolysis resistance, and electrical performance, suitable for chemical environments as well as food and pharmaceutical machinery components.

PPGF | Long-term Service Temperature: 120°C

PPGF is PP reinforced with glass fibre for higher strength, providing chemical resistance, high purity, low water absorption, good electrical insulation, and improved heat resistance.

PPS+GF | Long-term Service Temperature: 240°C

PPS reinforced with glass fibre improves strength and heat resistance, offering corrosion resistance, strong mechanical properties, electrical performance, and dimensional stability for electronics, automotive, and chemical machinery applications.

RENY | Long-term Service Temperature: 105°C

RENY is a heat-resistant nylon engineering plastic reinforced with glass fibre, featuring oil resistance and heat resistance for automotive, machinery, precision components, electrical/electronic equipment, and construction materials.

PVC | Long-term Service Temperature: 60°C

PVC offers acid/alkali resistance, good electrical insulation, strong mechanical properties, and weatherability—often used for chemical process components as well as construction, packaging, medical, wire & cable, and outdoor equipment parts.

TPI (Self-lubricating) | Long-term Service Temperature: -269~280°C

TPI provides excellent heat resistance, wear resistance, friction performance under high pressure/high speed, low outgassing under high vacuum, strong chemical resistance, outstanding dimensional stability, and low conductivity.

PTFE | Long-term Service Temperature: -190~260°C

PTFE is a fluoropolymer resistant to most chemicals and solvents, widely used in high-temperature, chemical, electrical, mechanical, and aerospace applications due to its electrical properties, non-stick surface, and lubricity.

PCTFE (Long-term Service Temperature: -200~200°C) :

PCTFE is a fluoropolymer featuring low permeability, chemical resistance, and a wide temperature range, commonly used in semiconductor process equipment parts.

PEEK+GF | Long-term Service Temperature: 260°C

PEEK reinforced with glass fibre increases stiffness and heat resistance up to 260°C, suitable for applications requiring heat resistance, chemical resistance, and flame retardancy (V-0).

PFA | Long-term Service Temperature: 260°C

PFA provides wide temperature resistance (-200°C to 260°C), chemical resistance, weatherability, and strong mechanical properties, widely used in pharmaceutical equipment and semiconductor wet process equipment parts.

NYLON | Long-term Service Temperature: 70°C

Nylon offers heat resistance, high strength and hardness, wear resistance, and low friction, commonly used in mechanical engineering, food technology, electronics, aerospace, and automotive equipment.

Hexagon Head Slotted Plastic Screws Metric Size Table

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
3×4	4×15	5×35	6×55
3×5	4×17	6×4	8×10
3×6	4×18	6×5	8×15
3×8	4×20	6×6	8×16
3×10	4×21	6×8	8×20
3×12	4×25	6×10	8×25
3×14	4×30	6×12	8×30
3×15	5×5	6×15	8×35
3×16	5×6	6×16	8×40
3×20	5×8	6×18	8×45
3×25	5×10	6×20	8×50
4×4	5×12	6×22	8×65
4×5	5×15	6×25	10×15
4×6	5×16	6×27.5	10×20
4×8	5×18	6×30	10×25
4×10	5×20	6×35	10×30
4×12	5×25	6×40	10×40
4×13	5×27	6×45	10×50
4×14	5×30	6×50	10×65

SPEC.

Length

SPEC.

Length

3×4

4×15

5×35

6×55

3×5

4×17

6×4

8×10

3×6

4×18

6×5

8×15

3×8

4×20

6×6

8×16

3×10

4×21

6×8

8×20

3×12

4×25

6×10

8×25

3×14

4×30

6×12

8×30

3×15

5×5

6×15

8×35

3×16

5×6

6×16

8×40

3×20

5×8

6×18

8×45

3×25

5×10

6×20

8×50

4×4

5×12

6×22

8×65

4×5

5×15

6×25

10×15

4×6

5×16

6×27.5

10×20

4×8

5×18

6×30

10×25

4×10

5×20

6×35

10×30

4×12

5×25

6×40

10×40

4×13

5×27

6×45

10×50

4×14

5×30

6×50

10×65

Hexagon Head Slotted Plastic Screws Inch Size Table

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"	#10-32UNF	3/8"
1/2"	1/2"
5/8"	5/8"
3/4"	3/4"
	1"
#8-36UNF	1/2"	1/4-20UNC	1/2"
5/8"	3/4"
3/4"	1"
		1-1/4"
		1-1/2"
#10-24UNC	3/8"	1/4-28UNF	3/4"
1/2"	1"
5/8"	1-1/2"
3/4"
1"

SPEC.

Length

SPEC.

Length

#8-32UNC

3/8"

#10-32UNF

3/8"

1/2"

5/8"

3/4"

#8-36UNF

1/2"

1/4-20UNC

1/2"

5/8"

3/4"

1-1/4"

1-1/2"

#10-24UNC

3/8"

1/4-28UNF

3/4"

1/2"

5/8"

1-1/2"

3/4"