Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Red Steel Paper (Vulcanized Fiber)
Thread Size	M3
Outer Diameter	8 mm
Inner Diameter	3 mm
Thickness	0.8 mm
Color	Red
Package Quantity	100 Pieces
Electrical Property	Insulating
Temperature Range	-20°C to 150°C
Application	Screws, Nuts, and Standoffs

5 reviews

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect Fit for Electronics

These washers fit my M3 screws perfectly. Great for insulating components in my DIY project.

Anonymous

Feb 25, 2026

Rating: 4/5

Solid Quality

Good insulating properties. Use them for motor mounting to prevent grounding.

Anonymous

Feb 18, 2026

Rating: 4/5

Good Value Pack

Solid quality for the price. One washer was slightly bent but the rest were fine.

Anonymous

Feb 08, 2026

Rating: 5/5

Fast Delivery

Arrived quickly and well packaged. The thickness is consistent across the batch.

Anonymous

Feb 06, 2026

Rating: 5/5

Essential Component

Exactly what I needed for standoff insulation. The red color makes them easy to spot.

5 FAQ

Q: Can these withstand high heat environments?

A: They are rated for moderate heat up to 150°C, suitable for most electronics.

Q: Are these washers electrically conductive?

A: No, these are made of insulating steel paper designed to prevent electrical contact.

Q: How many pieces are included in this order?

A: This package contains exactly 100 pieces of washers.

Q: Will these fit standard M3 screws?

A: Yes, the inner diameter is 3 mm, designed specifically for M3 thread sizes.

Q: What is the actual material composition?

A: They are constructed from red steel paper, also known as vulcanized fiber.

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