304 SS. The best you can buy.  These will last the life of the car!
 
Avoid the  cheaply manufactured,high profit and overpriced press fit  fasteners like those sold at el Cheapo Datsunparts,  Our fasteners are simply a better part with the stainless steel stud TIG welded to the plate-Nothing cheap about these parts-  The tig weld exceeds the strength of the fasteners!
 
We use PEM fasteners on less critical applications -  these welded studs will not fail as press fit fasteners can.  (If the fastener fails it spins inside the trim-extremely difficult to remove.....that is why we weld them.)  
 
The stud size on these is identical to the factory fasteners.
 
Improved aircraft grade fasteners included.  
 
Once again, a better part and a better price!
 
Manufactured in the USA.