Frequently asked questions

Are small lots supported?

We accept orders from a single unit. Thirty percent of the orders are orders for a single unit.

What is the minimum lot?

We manufacture from 1 piece.

Do you support mass production?

Entrust us with all your needs from prototyping to startup of mass production.

How long is the delivery period?

If it is an express order, we ship from the day following the date of order.
We use international courier services and marine transport according to the customer.

What are the supported sizes?

We support 1mm to around 1m. (Some sizes are difficult to support depending on the manufacturing method. Please contact us.)

Do you support machine components other than screws?

Yes. We support machine components other than screws (shafts, pulleys, gears, etc.), sheet metal and can manufacturing.

Can you provide support even if there is no drawing?

We would like to consider supporting you based on the sample and the usage. Please consult us.

How can I inquire?

We accept inquiries via mail form.

Where do you manufacture the products?

We manufacture at factories in Japan, Vietnam, Taiwan and China. We select these upon consultation with the customer.
Please feel free to contact us for anything about screws.
  • Our strengths|We support all kinds of processing of screws.
  • About the made-in-Vietnam products
  • About JIS screw strength/ torque
  • Screw locking
  • Frequently asked questions
  • The flow of request


Sanei co., ltd.

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