[5  & 8-18]

■Shape: Hex nut (with nylon ring)
Hex nut for loosening and a nylon ring on the top is pressed into the screw section such as bolts to create friction and loosening effect.
Use a tool such as a spanner or wrench to tighten it.

■ Thread Shape: Unifi Fine (UNF)
Uni-fi is a standard that originates in the USA. Currently it is prescribed by ISO (International Organization for Standardization) to unify standards, Canada, and Britain. "UNF" is finer than the standard pitch of the Unifi standard.

■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: unichrome
Chromate-treated with only luster.
The hexavalent chrome content is rare, and the corrosion resistance is less than chromate. Hexavalent chrome is hazardous and does not comply with RoHS directive. The alternative is trivalent white.
Color is "Silver Color".

Product Features:
Shape
The nut has been made with nylon rings on the exit side.
Nylon material is 66 nylon.

Features
When tightening the nut, male screws are made on the nylon ring, and the friction of the part causes
It will prevent loosening effect.
Less torque decreased even after repeated use.
● Nylon so it will not damage the bolts.
Can be used from -40 to -120 degrees Celsius.