These black lined conical nuts have a 20/400 neck finish , making them ideal for bottles without nuts
Insert the cone into the sealing area to form a tight seal to prevent liquid leakage, carbonation and gas leakage, thus providing you with a good seal and air tight seal
Made of high quality Bakelite and polyethylene, it is strong and leak proof when placed on the bottle
It can provide good torque retention, can be reused and durable, and the polyethylene cover will not rust over time
The black sealing nut has convex ridge on the whole circumference, which makes it easier to hold and seal
Description
Specification:
Type: Boston Bottle Cap
Out diameter: 23mm
Inner diameter: 20mm
Height: 12mm
Material: Bakelite
Color: Black
Package includes: 24 x Black Boston Bottle Caps
With raised ridges all over the circumference, making the lid easier to grasp, this 23mm inside diameter poly nut provides a good seal on the container for your daily use.