942 40mm metal screw cap products are offered for sale by suppliers on Alibaba.com, of which screws accounts for 22%, lids, bottle caps & closures accounts for 8%.
A wide variety of 40mm metal screw cap options are available to you, such as plastic, pp and aluminum.You can also choose from bottle, cans and jars 40mm metal screw cap,as well as from non spill, non-refillable, and recyclable 40mm metal screw cap, and whether 40mm metal screw cap is black, white, or gold.