Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Screws
Origin	-
Material	High-Grade Nylon (PA66)
Head Type	Headless (Set Screw)
Drive Type	Slotted
Thread Size Options	M3, M4
Color	Natural White
Application	Electronics, Plastic Assembly, Insulation
Corrosion Resistance	Excellent
Electrical Property	Non-Conductive
Package Type	Bulk Bag with Assorted Lengths
Country of Origin	China

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Reliable and durable

I've used these in outdoor sensor housings where rust is a major concern. After six months of exposure to humidity, they show no signs of degradation. Highly recommended for corrosion-prone environments.

Anonymous

Mar 17, 2026

Rating: 5/5

Exactly as described

Fast shipping and the product matches the description perfectly. The mix of lengths in the bulk pack is very convenient for prototyping different thicknesses. Will definitely order again.

Anonymous

Mar 14, 2026

Rating: 4/5

Solid choice for insulation

Bought these specifically for their electrical insulation properties in a custom control panel project. They hold torque well. Just be careful not to overtighten as nylon can strip easier than steel if you use too much force.

Anonymous

Mar 10, 2026

Rating: 4/5

Good value for bulk purchase

Great quantity for the price. The slotted heads are easy to turn with a standard flathead screwdriver. I deducted one star only because a few of the M3 screws in my bag had slightly uneven slots, but nothing that affected functionality.

Anonymous

Mar 10, 2026

Rating: 5/5

Perfect for sensitive electronics

These nylon set screws are exactly what I needed for my 3D printer hotend assembly. They provide excellent grip without stripping the threads on the aluminum block, and the non-conductive property gives me peace of mind near the heating elements.

Anonymous

Mar 06, 2026

Rating: 5/5

Ideal for plastic-to-plastic fastening

Using these to secure gears on plastic shafts. Unlike metal screws, these don't crack the plastic housing when tightened. The headless design allows them to sit flush, which is crucial for my moving parts.

5 FAQ

Q: Are these screws suitable for high-temperature applications?

A: Standard Nylon 66 has a continuous operating temperature up to approximately 80°C (176°F). For higher temperatures, we recommend checking our PEEK or specialized high-temp nylon series.

Q: Can I use a Phillips head screwdriver with these?

A: No, these screws feature a slotted drive design. You will need a standard flathead screwdriver that fits the slot width of the M3 or M4 size you purchased.

Q: What is the tensile strength of these M4 screws?

A: The tensile strength for our M4 Nylon 66 set screws is approximately 75-85 MPa. Please note that nylon is designed for moderate load applications and insulation rather than heavy structural loads.

Q: Do these come with matching nuts and washers included?

A: This specific listing is for the headless set screws only. However, we do sell compatible nylon nuts and washers separately in our store under the same M3 and M4 categories.

Q: Is there a bulk discount available for orders over 1000 units?

A: Yes, we offer tiered pricing for bulk orders. Please add the desired quantity to your cart to see the automatic discount applied, or contact our sales team for custom quotes on very large volumes.

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