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Home / Screws / Black Nylon Phillips Countersunk Screw Set Insulated Nut Flat Washer Combination Insulated Plastic PA66 Glue Screws

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Screws
Origin -
Material PA66 Nylon Plastic
Head Type Countersunk Flat Head
Drive Style Phillips (Cross)
Color Black
Insulation Property Electrically Non-Conductive
Included Components Screw, Insulated Nut, Flat Washer
Thread Type Machine Thread
Temperature Resistance -40°C to +85°C
Application Electronics, Automotive, DIY Projects
Corrosion Resistance High (Rust-Proof)

6 reviews

A

Anonymous

Mar 16, 2026

Rating: 4/5

Great for under-hood sensors

Used these to mount some sensors in my car engine bay. They handle the heat well enough for my needs and don't rattle loose due to vibration. Would buy again.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Smooth finish and clean look

The countersunk head sits flush against the surface beautifully. No rough edges on the plastic, and the black finish is consistent across all pieces in the bag.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Complete kit saves time

Love that this comes with the matching nuts and washers. It saved me a trip to the hardware store trying to find compatible plastic hardware. The Phillips head grips well.

A

Anonymous

Mar 05, 2026

Rating: 4/5

Good quality, slightly soft

The insulation properties are great, but you have to be careful not to overtighten them as the plastic can strip if you use too much torque. Overall, a solid set for non-structural applications.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect for my electronics project

These nylon screws are exactly what I needed for mounting a circuit board where metal screws would cause a short. The included washers and nuts fit perfectly, and the black color looks very professional.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Excellent corrosion resistance

I used these in a humid environment where steel screws would rust within weeks. After three months, these nylon screws still look brand new and hold tight. Highly recommended.

5 FAQ

Q: What is the maximum torque rating for these screws?

A: We do not recommend using a torque wrench for plastic screws. Please hand-tighten until snug. Overtightening can strip the threads or crack the head.

Q: Can these withstand contact with battery acid?

A: PA66 nylon generally has good chemical resistance, but we cannot guarantee performance against concentrated battery acid. Please consult the chemical compatibility chart in the product manual.

Q: Is the nut also made of nylon or is it metal?

A: The entire set, including the screw, nut, and flat washer, is made from insulated PA66 nylon plastic to ensure full electrical isolation.

Q: Do these come in different sizes?

A: This specific listing is for a fixed size set. However, we offer various metric and imperial sizes in our store. Please check the 'Related Products' section for other dimensions.

Q: Are these screws suitable for outdoor use in direct sunlight?

A: While PA66 nylon has good weather resistance, prolonged exposure to direct UV sunlight may eventually cause brittleness. For long-term outdoor use, we recommend UV-stabilized variants or protective coating.

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