Model 66-2 sight blade

[ernieflash]

Hello New Guy here,
I have a model 66 -2 with a six inch barrel it came without rear sight .
I have a rear sight leaf that fits but i don't have a sight blade.
The sight leaf is the older style(?) with the pin holding the windage screw. I am having a problem finding right blade.The blade i need is the one that fits screw that measures .154 over the threads
Do Not know exact thread size.Any help greatly appreciated.
Thanks in advance

 

[AveragEd]

S&W sells a sight blade replacing tool that makes the chore easy.

Ed

 

[ernieflash]

blade

i appreciate ifo Sir
But I need a Blade
Any body have a source thanks

 

[DeafSmith]

i appreciate ifo Sir
But I need a Blade
Any body have a source thanks

Just google 's&w rear sight blade kit'.

 

[RevolverJim]

Numrich Gun Parts

 

[-BTM-]

I’m not 100% on this but I think the kit is needed. The old screw breaks off by design.

 

[ernieflash]

Numrich

They are out of stock
I need the sight blade that is the larger screw thread i don't know the thread size .
I am familiar with the one that breaks off
I need the one that does not have a nut on the end it has a pin that holds it into the sight leaf .
All the ones that I find on internet are the ones with the nut on end .