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Steyr SL Scope Base Screw Size

 
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eltee
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Joined: 31 Oct 2006
Posts: 437
Location: West Coast USA

PostPosted: Tue Jul 05, 2016 7:06 pm    Post subject: Steyr SL Scope Base Screw Size Reply with quote

I'm in the midst on working on my shooter using a real Steyr SL receiver. Both the receivers I am working on came without the screws for the pre-drilled and tapped holes on top where you would normally attach scope bases. I cannot find any replacement screws and I cannot seem to find out what the specs are for those screws.

The prop had 3 out of the four in place on top of the receiver, the fourth hole had a buttonhole allen screw.

I've tried Steyr dealers, the Steyrclub website, etc. Any help appreciated.
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hirohawa
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Joined: 18 May 2006
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PostPosted: Wed Jul 06, 2016 12:56 pm    Post subject: Reply with quote

Slotted flat head grub screw 4mm diameter by 2.3mm length.



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eltee
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PostPosted: Thu Jul 07, 2016 12:28 am    Post subject: Reply with quote

Thanks. Will try to ascertain thread pitch, presumably metric. I appreciate the info.
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hirohawa
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PostPosted: Thu Jul 07, 2016 2:31 am    Post subject: Reply with quote

Definitely metric. I am pretty sure it is a standard pitch.

http://www.mrmetric.com

Basically has anything metric you might need.
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racprops
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PostPosted: Thu Jul 07, 2016 2:42 am    Post subject: Reply with quote

Thanks, checked for Slotted flat head grub screw 4mm diameter by 2.3mm length on their web site and so far nothing.

Will call tomorrow and talk with someone and see if we can get them.

Rich
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hirohawa
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PostPosted: Thu Jul 07, 2016 4:05 am    Post subject: Reply with quote

2.5mm length or 3mm length should work also as there is a lot of room for that grub screw to travel down.
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racprops
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PostPosted: Thu Jul 07, 2016 6:47 am    Post subject: Reply with quote

Agreed.

Will call today.

Rich
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racprops
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PostPosted: Thu Jul 07, 2016 11:54 am    Post subject: Reply with quote

Called and no go.

They do have a 4 X 4 MM allen head screw..so perhaps we can grind off the head and then slot it our self's??

Other wise the search goes on.

Also they can special order it, but it will be for 100 screws.

Rich
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hirohawa
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PostPosted: Thu Jul 07, 2016 1:11 pm    Post subject: Reply with quote

i think even 4mm length could work. the stock grub screw is so short and there is a ton of metal on that receiver to be able to hold a scope mount.
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