Not sure about the Wattgates, but these inexpensive 'iec inlet tighteners work for a variety of PC / components and are easy to try:
https://www.amazon.com/dp/B0771T7PC9?ref=ppx_yo2ov_dt_b_fed_asin_title
Wattgate IEC does not fit tight.
I have a Kimber Palladian power cable which is fantastic. It has Wattgate 330i connecters. The IEC keeps disconnecting from the amp due to not fitting tight. I replaced it with a 350i and it won't even connect now. It seems the part that connects to the amp are too far inside the IEC. It falls out immediately. Is there a quality IEC I can use that fits tight. I used a $6 computer cord and it works fine. any help would be appreciated.