Which screws to use for Supernova pic rail

[paesano]

Hello!

I’m trying to install a pic rail on my Supernova. Started by removing the pins from the inside of the receiver to expose the threads.  

I purchased this pic rail, part number 61193:

https://www.midwestgunworks.com/product-display.html?Product_Code=61193

these washers, part number 70077:

https://www.midwestgunworks.com/product-display.html?Product_Code=70077

 

but these screws are not long enough, part number 61192:

https://www.midwestgunworks.com/product-display.html?Product_Code=61192

 

Midwest gun works is recommending these screws, part number 70123B:

https://www.midwestgunworks.com/page/mgwi/prod/70123B

 

but those also seem too short to me. I think these (part number B83180) look right but wanted to confirm with experts here:

https://www.midwestgunworks.com/page/mgwi/prod/b83180

 

Any help would be greatly appreciated!

[benelliwerkes]

Use 8-40 torx head screws;

[paesano]

Spoke to Benelli, for those interested the correct part number is B83180