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Home / Connectors and Fasteners / M3-M20 PVC External Hex Head Screws, Gray Insulated Bolts, Acid and Alkali Resistant Plastic Fasteners

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material Polyvinyl Chloride (PVC)
Head Style Hexagon Head
Color Gray
Thread Size Range M3, M4, M5, M6, M8, M10, M12, M16, M20
Drive Type External Hex
Electrical Property Insulated
Chemical Resistance Acid and Alkali Resistant
Thread Standard Metric Coarse
Surface Finish Matte
Primary Application Chemical Processing and Water Treatment

5 reviews

A

Anonymous

Apr 12, 2026

Rating: 5/5

Durable plastic

Withstood chemical exposure better than expected. The hex head makes installation easy with standard tools.

A

Anonymous

Mar 30, 2026

Rating: 4/5

Good value pack

Most sizes fit well for my needs. The gray color matches my equipment nicely. Would prefer if nuts were included.

A

Anonymous

Feb 24, 2026

Rating: 4/5

Solid fasteners

Head size is standard which is great. Thread engagement is smooth. Good product for the price point.

A

Anonymous

Feb 23, 2026

Rating: 5/5

Excellent corrosion resistance

Used these in my water treatment project and they held up perfectly against the chemicals. Very happy with the insulation properties.

A

Anonymous

Feb 09, 2026

Rating: 5/5

Perfect for non-conductive needs

Safety first in my lab. These plastic bolts ensure no electrical conductivity where I need it. High quality PVC.

5 FAQ

Q: Do you stock sizes larger than M20?

A: Currently we stock sizes up to M20. Please contact us for custom bulk orders regarding larger sizes.

Q: Is this material resistant to UV exposure?

A: Standard PVC has limited UV resistance. For outdoor use, we recommend protective coating or shelter.

Q: Are matching PVC nuts included in the package?

A: No, this listing is for screws only. Matching nuts are sold separately in our store.

Q: What is the tensile strength compared to steel?

A: These are suitable for light to medium industrial loads. They are not a direct strength replacement for steel bolts.

Q: What is the maximum operating temperature for these screws?

A: The recommended maximum continuous operating temperature is up to 60 degrees Celsius.

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