When selecting a material, you will want to make sure it complies with the product it comes in contact with. You say it's like the caps on a milk bottle - Are you making these caps for a food product? make sure the material selection is FDA grade material. Are the tabs exactly like the other...
Sahinoz,
Depending on your design and where the part is gated, it is possible to get a moldable part that is very appealing and this would be the less expensive means of manufacturing the part, unless you are looking at manufacturing in China with very low labor cost, then you may want to...
I would recommend you contact a Cold headed stamping house and they can recommend materials that will meet your needs regarding hardness that is better than stainless steel.
Regards,
mtpi.us
