sight screw holes
Question:
A friend has a bow that has had the sight screw holes are now striped and will not hold the screws. Is there a easy method to fill the holes and then retab to 8 x 32 thred size. If so, what is it called and where can you buy it. thanks Bill
Response:
You can purchase a helical thread insert kit at an automotive store. The thread size is 10-24; all bows. The kit consists of a tap drill , special tap, insert and an insertion tool.Before you buy all this for a one time fix, Stop at your local Pro shop, He may have it. Also check out the yellow pages for a small machine shop. They will help Joe – Hide quoted text — Show quoted text – > A friend has a bow that has had the sight screw holes are now striped and > will not hold the screws. Is there a easy method to fill the holes and then > retab to 8 x 32 thred size. If so, what is it called and where can you buy > it. thanks Bill
Response:
If the sight screw holes are 8-32 then retap the holes to the AMO standard of 10-24. – Hide quoted text — Show quoted text – > A friend has a bow that has had the sight screw holes are now striped and > will not hold the screws. Is there a easy method to fill the holes and then > retab to 8 x 32 thred size. If so, what is it called and where can you buy > it. thanks Bill
Response:
|> You can purchase a helical thread insert kit at an automotive store. The thread |> size is 10-24; all bows. Is it really 10-24? I thought it was 10-32. In any case, you can buy a tap and an appropriately sized drill at many hardware stores. If you have never done this sort of thing before, do a little bit of practicing. If you have a drill press to drill out the hole, use it. It is sometimes very difficult to drill a hole with the proper alignment by hand. Marty Sasaki
Response:
My experience with archery shops is somewhat limited; however , the one in Austin (Awestin to all yew yankees) has all the tools needed for this kind of operation, including a small drill press. I’d recommend that you NOT do this yourself, but rather take it to someone who has done it before. Why screw up a good riser?<pardon the pun> — ARC in Lago Vista, TX "For an ethic is not an ethic, and a value not a value without some sacrifice to it. Something given up something not taken something not gained. We do it in exchange for a greater good for something worth more than just money and power and position the great paradox of this philosophy is that in the end it brings one greater gain than any other philosophy - Jerry Kohlberg "
– Hide quoted text — Show quoted text – > |> You can purchase a helical thread insert kit at an automotive store. The thread > |> size is 10-24; all bows. > Is it really 10-24? I thought it was 10-32. > In any case, you can buy a tap and an appropriately sized drill at many hardware > stores. If you have never done this sort of thing before, do a little bit of > practicing. If you have a drill press to drill out the hole, use it. It is > sometimes very difficult to drill a hole with the proper alignment by hand. > Marty Sasaki
Response:
>A friend has a bow that has had the sight screw holes are now striped and >will not hold the screws. Is there a easy method to fill the holes and then
The easiest and best way is to simply drill new holes and tap them. If you do not own the proper drill bit and tap it might be more economical to have a pro shop drill and tap the riser. The sight mount bracket will coverconceal the old stripped out holes.
Response:
Just a reminder: Many bows break in this area. If it were my bow I wouldn’t drill any more holes. Joe – Hide quoted text — Show quoted text – > A friend has a bow that has had the sight screw holes are now striped and > will not hold the screws. Is there a easy method to fill the holes and then > retab to 8 x 32 thred size. If so, what is it called and where can you buy > it. thanks Bill
Response:
: The easiest and best way is to simply drill new holes and tap them. If you : do not own the proper drill bit and tap it might be more economical to have : a pro shop drill and tap the riser. The sight mount bracket will : coverconceal the old stripped out holes. This is NOT the best way: - Any more material removal than necessary is a minus. - Heli-coil (or equivelant) inserts are stronger than the original since they are higher strength material, allow better engagement for non-perfect thread pitch and have more contact area with the softer riser material due to their increased diameter. They are basically a diamond cross section spring wire sized and would to match the thread pitch of the existing screw. - You don’t conceal anything except a very slightly larger threaded area. -Scot — *** ANTI-SPAM ALERT *** Note the "removethis." in the return address. *** Scot E. Heath, P.E. "Nothing beats turning clay to dust." Fort Collins, CO
Response:
If you do go with this method I’d suggest filling the old holes with a two part metal weld epoxy (I’ve used J.B. Weld with good results). Make sure you overfill the hole a bit. This way you can sand it down smooth later and match the color with some touch up paint. Drilling the old holes out and installing inserts would probably be a better option though. If you do not have the right equipment or experience, I would suggest letting a proshop do it however. Peter Gussie Midwest Cimmarron Archery Richmond, IL U.S. – Hide quoted text — Show quoted text – > : The easiest and best way is to simply drill new holes and tap them. If you > : do not own the proper drill bit and tap it might be more economical to have > : a pro shop drill and tap the riser. The sight mount bracket will > : coverconceal the old stripped out holes.
