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Quick Details

  • Place of Origin: Japan
  • Brand Name: HIROSUGI
  • Model Number: ES-300E
  • Spacer: Resin
  • Material: POM (Duracon)
  • Color: Milky white
  • Screw size & Pitch: M3 x 0.5
  • Shape: Hexagonal
  • Type: Male-male
  • Male screw: Brass (C3604BD)
  • Feature: Conductive
  • High quality: Made in Japan

Packaging & Delivery

Packaging Details Sealed plastic bag
Carton box
Depending on order item & quantity
Delivery Time 5-14 days after confirming your T/T
Product details

<Specification> ES-300E series (Conductive)


Body: POM (Duracon)

Male screw: Brass (C3604BD)

Color: Milky white

*Main body is an insulator. Male screws are conductive.

EU RoHS compliant


Screw size: M3 x 0.5

Flat diameter: 5.5 mm

Length of male screw: 6.0 mm

Range of body length: 5.0 mm - 20.0 mm

MOQ: 50 pcs.  


Range of screw/thread sizes: M3, M4

Body length:

M4: 8.0 mm - 20.0 mm


Male screw of ES-E series is conductive.

We have NS-E series (M3, M4) & NS-WE series (M3, M4) whose male screw is insulative.




Request for quotation / Inquiry

Please let us know our product code & quantity you would like.

Please feel free to ask us with details of item you would like, even you do not know our product code.

Placing Order

Please provide us your Purchase Order and let us know your shipping adderss.

Payment terms: T/T or PayPal in advance

Currency: USD  

Shipment: By courier such as DHL, FedEx, UPS, and TNT

                  If you do not have any accout number of courier, we can ship by EMS.


HIROSUGI offers you:

  • All kinds of electrical fasteners and parts Spacers, Standoffs, Washers, Bushings, Screws, Bolts, Nuts, Pinheaders, etc.
  • 60,000 line items availble any time you need themMinimum order quantity: 50 pcs (depending on the products)
  • Confidence for high quality and environmentally friendlyCertified: ISO 9001 (Quality Control), ISO 14001 (Environment)

Our Aims and Goals

Philosophy: "Environment preservation is our quality."

Our unchanging idea as a member of the group preserving the environment: we insist on taking every step to produce our products in accordance with the environment.

Achieving the best quality, seeking the customer's satisfaction and contributing to society are our aims and goals.


Our Global Vision

Since we are proud of the quality and usability of our products, we hope our products will contribute to global society.

After founding the International Division as a new department in 2007, we are ready to expand our trade overseas.

Our purposes for expanding our foreign trade are to:

  • Supply ad greater variety of items to overseas as well as domestically.
  • Build firm partnerships with companies overseas.
  • Share new technical information and trends in the industry.

Company Profile

Hirosugi-Keiki Co., Ltd.

Founded: Dec.1980

Capital: 50 million yen

Chairman and CEO: Ichiro Sasaki

International Division

Address: 2038-1 Maginu, Miyamae-ku, Kawasaki, Kanagawa 216-0035 JAPAN

TEL: +81-44-855-5093

E-mail: hcontactAhirosugi.jp (Please replace "A" with "@" when you send us e-mail.)

Website: www.hirosugi.jp (English)






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