Pella sliding door handle catch

Hey, I just bought a house and there is a Pella sliding glass door at Living room with a Pella sliding glass door handle, but there is no catch at the jamb. The previous owners were just using a surface type add on bolt to lock the door. There has never been a catch installed on the jamb itself because there are not even holes at the jamb where a catch would have once been. Door and handle itself looks to be approx. 10-15 years old and appears to be Pella's entry level vinyl door. Could you direct me to a part # of a catch that you think would work?
Thx,
JW

Thanks for this info. I will investigate on my end to see if 3/4 or 7/16 is what this door is set up to latch to and go from there.

Would it help to know that Pella's vinyl line are formerly Viking products?