Tuning Puncher breaker burst disk leaks

Looking for some help, my puncher breaker air tank leaks around the burst disk. Is it possible to get and replace the burst disk screw? I rounded out mine. Emailed Kral as of yet received no response.

Kral is a wholesale Manufacturer and doesn't handle customer service. That falls on the Importer/Retailer. Where did you buy it and where are you located? I can probably help you out.