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Tec-Hro Grub Screw

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Does anyone have a grubscrew for a Tec-Hro 2.0 riser? Or does anyone know the size?

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I don't recall grubscrews per se on that riser; there are the dovetail clamps then studs for the height setting? :blink:

 

I have one, so please clarify and I'll take a look.

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Huey,

 

The grubscrews lock the dovetail onto the studs.

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2mm allen head fitting, 5.9mm length, 3.84mm outside (thread) diameter. Probably like these.

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For reference, the screws for the barrel 'scope blocks and foresight mount are also M3, and the grub screws that blank of the holes on 1980s barrels fit the raiser dovetail.

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3.84mm o/d points to M4 thread not M3.

Hence my "probably" :) Many such adverts have missing key information, like the size of the allen head for example and assume a great deal.

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