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ADAFRUIT 640 Conductive Stainless Steel Thread

The 640 is a 23-meter length of thin, conductive stainless steel thread designed for wearable electronics and e-textile projects. Made entirely of 316L stainless steel, it is strong, smooth, and slightly thicker than standard polyester or cotton threads, suitable for hand sewing with medium-eye needles or sewing machines capable of handling heavier threads. This conductive thread has a low resistivity of approximately 16 ohms per foot, making it suitable for driving LEDs and electronic components that require under 50mA. It is ideal for embedding circuitry in wearable designs and development projects.

Authorized Distributors
Source:DigiKey
Part No:640
Stock:0
Inv Date:06-01-2026
Price: Unit price: $12.2724
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Source:DigiKey
Part No:640
Stock:172
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Price: Unit price: $6.95
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Source:DigiKey
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Price: Unit price: $12.99
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Source:DigiKey
Part No:640
Stock:37
Inv Date:06-01-2026
Price: Unit price: $1.59
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Source:DigiKey
Part No:640
Stock:100
Inv Date:06-01-2026
Price: Unit price: $177.04
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Source:DigiKey
Part No:640+
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Inv Date:06-01-2026
Price: Unit price: $576.41
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Part No:640
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Inv Date:06-02-2026
Price: N/A
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Part No:640
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Inv Date:06-02-2026
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Part No:640
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Authorized Distributors
Part No:640
Stock:0
Inv Date:06-02-2026
Price: N/A
Buy/RFQ:
Part No:640
Stock:29
Inv Date:06-02-2026
Price: Unit price: $6.95
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Part No:640
Stock:0
Inv Date:06-01-2026
Price: Unit price: $1.53
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Part No:640
Stock:0
Inv Date:06-01-2026
Price: Unit price: $19.05
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Part No:640
Stock:0
Inv Date:06-01-2026
Price: Unit price: $28.21
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Part No:640
Stock:0
Inv Date:06-01-2026
Price: Unit price: $1.5
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Part No:640
Stock:2
Inv Date:06-01-2026
Price: Unit price: $4.87
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Part No:640
Stock:0
Inv Date:06-01-2026
Price: Unit price: $25.93
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Part No:640
Stock:36
Inv Date:06-01-2026
Price: Unit price: $31.75
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Authorized Distributors
Part No:640
Stock:36
Inv Date:06-01-2026
Price: Unit price: $31.75
Buy/RFQ:
Part No:640
Stock:92
Inv Date:06-02-2026
Price: N/A
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ADAFRUIT 640 Conductive Stainless Steel Thread Specifications:

  • Material: 316L stainless steel
  • Thickness: 0.2mm
  • Ply: 2 ply
  • Length: 23 meters
  • Resistivity: 16 ohms per foot
  • RoHS Compliant
  • Uses: Wearables, e-textiles, embedded circuitry
  • Suitable for: Hand sewing and sewing machines capable of handling heavy threads
  • Color: Silver
  • Other features: Oxidation resistant, washable, stiff feel similar to waxed thread

Buy the Stainless Steel Series Conductive Thread: 640

Enhance your wearable electronics projects with the conductive stainless steel thread. Measuring 23 meters and made from durable 316L stainless steel, this 2 ply thread offers low resistivity, high strength, and oxidation resistance. Perfect for embedding circuitry, LEDs, and other electronic components, it’s suitable for hand sewing or machine use. Its stiff, smooth profile ensures precise connections in wearable tech and e-textiles, making it an essential component for innovative electronic textiles that demand reliability and long-lasting performance.

Order your Stainless Steel Series Conductive Thread 640 today and give your wearable electronics the reliable conductivity and durability they deserve.

Frequently Asked Questions

Where can I buy ADAFRUIT 640?

You can click on the BUY or RFQ button to purchase 640 from an authorized ADAFRUIT distributor.

How do I troubleshoot issues or seek technical support for part 640?

You can download the 640 datasheet or visit the ADAFRUIT website for support.

Who is the manufacturer of 640?

ADAFRUIT

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