คุณลักษณะ

• 1 type (single chamfered) hex nut, height is 80% of nominal diameter.
• The screw pitch is finer than the standard one.
• Material is steel with chromate plating (yellowish color) to improve corrosion resistance.
• Used for tightening, fastening and fixing the external thread.
• Since it is fine, it is hard to loosen, and it is used for the same pitch external screw.
• Has more corrosion resistance than fabric.