[M4×8]

■ Head Shape: Round Knob (-)
The hand-held head shape has a round cylindrical shape and has a knurling on the side for added traction.
In addition, the upper part of the head has a grinding (negative hole) as a tool hole.
Basically, you can tighten it by hand, but you can tighten it with a flathead screwdriver, or in places where you cant turn it by hand.

■ Thread Shape: Coarse
It is the most standard pitch in Japan as prescribed by ISO (International Organization for Standardization) standard. The most frequent distribution in Japan.

■ Screw 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.

■ Thread 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:
Material:
Head: Nylon 66.

Features:
The screw can be turned with a coin.
Can also be used as a hand-tightened belt as well as traditional cosmetic screws.

Uses:
Displays, electronics, machinery, office equipment, etc.