Quality Control

Inspection Items

Dimensional tolerance inspection for outer diameter

Measured with a bore micrometer

Dimensional tolerance inspection for outer diameter

Measured with a micrometer

Dimensional tolerance inspection for length

Measured with vernier calipers

Fit tolerance inspection

Using a limit plug gauge or pin gauge

Male and Female thread inspection

In principle, bolts and nuts equivalent to ISO2 (JISB's 2025) should fit.

Visual inspection

Measured with roughness measurement equipment, dot gauge, and surface plate

Packaging

Examples of packaging materials

Caution

For steel products without surface treatment and rust-prone treatments such as black oxide, rust-preventive oil is applied before delivery, but rust may still occur depending on storage conditions. Please unpack and inspect the products immediately upon receipt.

Shipping package

Product and drawings are enclosed in bubble wrap

Product and drawings are enclosed in bubble wrap

Shipping package (single item)

Shipping package(multiple items)

Packing for long products (wooden pallet delivery)

Wrapped with bubble cushion
Drawing is included
Product label is attached
Wrapped with cardboard
Packing (Water-proof wrapping)

Caution

 
You need to dispose the wooden pallet and receive the product by forklift.
Please write your delivery address in the comment field when requesting a manual quote.

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