[M12 (P=1.5)]

■Shape: Bag nut
Hex nut on one side with domed metal overlay
Screws such as bolts are not exposed than threaded holes, so they look good and improve safety.
Use a tool such as a spanner or wrench to tighten it.

■ Thread Shape: Fine
Finer than the nations most standard pitch (coarse) prescribed by ISO (International Organization for Standardization) standard. Compared to coarse threads, it has a shallow valley and a larger cross-section area which makes it less likely to loose. Please note that there are multiple sizes of pitch depending on the thickness of the screw. Primarily used where precision is required.

■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: Trivalent white
It has the same corrosion resistance as "chromate" and has the same possibility of imitation self-healing.
Unlike hexavalent chrome, it is non-toxic and compliant with RoHS directive. So it is used as an alternative to unichromate/chromate.
Color is "Silver Color".

Product Features:
After fastening, the cap portion of the bag improves its appearance and is often used for places where safety is desired.
Because it covers the surface, it is also called "cosmetic nut".
Basically, the cap part is a "3 type and 2 types" welded to two types of hex nuts, but it will vary depending on the size, so please contact us if this standard is important.