[M8×60]

■ Head Shape: Root Angle Bolt
The head part has a round head without a tool hole, and a square part on the bottom of the neck is the official name of the "Square Root Bolt".
When tightening, simply place the square part below the neck into the long hole of the mounting component, and stop the bolt and secure and rotate the nut side to tighten it. It has a round head, so it has cosmetic even after tightening, so it does not get caught and is safe and secure.

■ Thread Shape: Coarse [Half thread]
It is the most standard pitch in Japan as prescribed by ISO (International Organization for Standardization) standard. The most frequent distribution in Japan.
In addition, "half-thread" means that the screw is only cut from the end to the end. The length of the threaded part may vary depending on the manufacturer, size, etc.

■Material: Iron
"Iron" is "steel" and is an alloy of iron containing carbon.
Although it is commonly used in many circulations, it is cheap materials, but due to the downside of it is easy to rust, many surface treatments will reduce corrosion.

■Surface treatment: Chromate
Chromate-treated for corrosion resistance
Chromate coating is more corrosion resistant than unichrome It contains harmful hexavalent chromium and does not comply with RoHS directive. The alternative is trivalent white.
Shades are "Tan".

Product Features:
■Important information ■
Due to the previous JIS standards, the root bolt is divided into "A type,1 type,"2 types,"B shape".
This product is a mixture of "1 type" and "B shape" which is divided by size and material.
If you are strictly conscious of the A-type and B-shape, please check the drawing and standard chart before purchasing.