avenfoto 0 #1 August 7, 2007 so i snapped my ringsight off the other night and cant seem to find the 5/32 nylon machine screws anywhere.. any ideas? thanks for your help. edit to add im jumping a schumacher articulated mount... Quote Share this post Link to post Share on other sites
piisfish 135 #2 August 7, 2007 I found mine in a model shop (no, not top models, in a radio-controlled models shop) for those who don't understand why NO metal screws, check MY VIDEO . Not having metal screws for my mount was one of the causes of this incident.scissors beat paper, paper beat rock, rock beat wingsuit - KarlM Quote Share this post Link to post Share on other sites
Fast 0 #3 August 7, 2007 Found mine at a Ace Hardware.~D Where troubles melt like lemon drops Away above the chimney tops That's where you'll find me. Swooping is taking one last poke at the bear before escaping it's cave - davelepka Quote Share this post Link to post Share on other sites
velvetjo 0 #4 August 7, 2007 Found a variety of nylon screws in a specialty fastener bin at Lowe's. Make sure you bring your mount with you to size them correctly, since there are a few that are very close to one another in diameter and thread count. Don't force it, they should thread with very light pressure. If not, you'll shear the head off during installation. One word of caution: I got the bright idea to melt the remnants of the old nylon screw out of the mount since I couldn't turn it. This weakened the spring substantially, and it's not trivial to replace it. After a phone discussion with Brent, I ended up just buying a new mount because of my mistake. Thinking back on it, cutting a groove with an Xacto knife and turning the shaft with a jeweler's screwdriver would probably do the trick. Lance Quote Share this post Link to post Share on other sites
sdctlc 0 #5 August 8, 2007 got mine at Home depot. Came in packs of 10 I think.. Scott"He who Hesitates Shall Inherit the Earth!" Quote Share this post Link to post Share on other sites
ast4711 0 #6 August 8, 2007 I had the same problem with mine, only difference: I live in Germany. As you may know we have the metric system everywhere and screws with US thread are hard to get, and US thread made of nylon is impossible :-( My Solution: Use M3 nylon screws (will find them everywhere) and put some cord thru the hole and then thread the nylon screws as normal. The cord will fill up the space because M3 is a little smaller than 5/32. Works great! alex -- www.tandemmaster.net www.skydivegear.de Quote Share this post Link to post Share on other sites
cj1150gs 0 #7 August 8, 2007 Quote Use M3 nylon screws Yep, we're metric here also (as everyone should ) I've drilled new holes and tapped them to M3. Carlos Martins Portugal www.cj.smugmug.com Quote Share this post Link to post Share on other sites
ast4711 0 #8 August 8, 2007 QuoteI've drilled new holes and tapped them to M3. how did you get the m3 screws fasten?? If at all, I would think, you could adapt the holes to M4 threading, but that would mean that the m4 screws will break at a much higher force than the original 5/32 would..... :-( Quotewe're metric here also (as everyone should) You are right, everyone should use the "correct" system :-) alex -- www.tandemmaster.net www.skydivegear.de Quote Share this post Link to post Share on other sites
cj1150gs 0 #9 August 8, 2007 Quote how did you get the m3 screws fasten?? If at all, I would think, you could adapt the holes to M4 threading, but that would mean that the m4 screws will break at a much higher force than the original 5/32 would..... :-( yes... my first idea was to fill the 5/32 holes with epoxi or something then drill and tap. But then I just drilled new 2.75 mm holes close to the original ones and tapped them to M3. I'll post a pic tonight. Now I have a metric (read correct) Shumacker. Carlos Martins Portugal www.cj.smugmug.com Quote Share this post Link to post Share on other sites
Shoot 0 #10 August 8, 2007 Does Schumacher got a website btw? Quote Share this post Link to post Share on other sites
avenfoto 0 #11 August 8, 2007 update. everywhere i went had 4/40 then jumped up to 6/32.. solution, 4/40's w/nuts and silicone... also, to remove broken screws, use a pair of needlenose pliers, if there's not enough to get a hold of, a super small drill bit and a stady hand should do it... thanks for everyones help. -b Quote Share this post Link to post Share on other sites
cj1150gs 0 #12 August 10, 2007 First Universal Imperial/Metric Schumacker (sorry the crappy-cellphone pic) Carlos Martins Portugal www.cj.smugmug.com Quote Share this post Link to post Share on other sites
sky490 0 #13 August 15, 2007 You can get them from Mcmaster Carr www.mcmaster.com PN 91772A146 $1.96 per 100 + Shipping Quote Quote Share this post Link to post Share on other sites sky490 0 #14 August 15, 2007 Just a note! Schumacher uses the Nylon 6-32 X .5 screw from Mcmaster Carr Part Number 91772A146 they cost $1.96 per humdred. Also to remove broken bolt: Use a small flat edge screw driver, heat the tip of the screw driver with a heat source (a match will work) push the screw driver into the Nylon bolt without turning it. You have created a slot for the screw driver. When this cools (several seconds) unscrew using the same now cool screw driver. Quote Share this post Link to post Share on other sites avenfoto 0 #15 August 16, 2007 no, they use the 5/32. Quote Share this post Link to post Share on other sites mr2mk1g 10 #16 August 16, 2007 Ordered a pack earlier today. Mcmaster Carr e-mailed back saying that "Due to the ever-increasing complexity of U.S. Export regulations... we cannot accept your order" (This was re an order to be sent to the UK). Who knew that exporting tiny nylon screws attracted so much difficulty with export regulations. Quote Share this post Link to post Share on other sites The111 0 #17 August 16, 2007 Quoteno, they use the 5/32. Bryan, what exactly do you mean by 5/32? I've never heard of a 5/32 screw thread, but that doesn't mean it doesn't exist. What is the thread OD and the TPI?www.WingsuitPhotos.com Quote Share this post Link to post Share on other sites avenfoto 0 #18 August 16, 2007 man i have no clue... i think its five thirty-seconds of an inch but i could be wrong... i just know that on the install instructions that came with the bracket (this is off the top of my head) it said to "drill a 6/32 hole ....then use the included 5/32 nylon machine screws to attach" or something to that effect... naturally i broke two (it comes with one replacement) the workaround (for me) was to just buy 4/40x1.5" nylon screws, which just barely fit through the threads on the bracket, and use a steel washer and nut, as well as a drop of silicone to finish it off... ill post photos later.. cya -b Quote Share this post Link to post Share on other sites PhreeZone 15 #19 August 16, 2007 I think its funny that you were telling Terry that he doesn't know what he ships his gear with. Yesterday is history And tomorrow is a mystery Parachutemanuals.com Quote Share this post Link to post Share on other sites The111 0 #20 August 16, 2007 And I find it funny that Terry refers to himself in 3rd person in his post. I didn't even realize it was him either... good thing because I lost his email address and I have a question I've been needing to ask him. Bryan, I would be careful with #4 nylon screws. Even stainless #4's are pretty damn weak. If you so much as bump that helmet the wrong way those screws may perform their "break job" prematurely. I'd go with #6's if I were you. Btw... the "32" in "5/32 hole" is part of a fraction, or .156" diameter. the "32" in a "6-32 screw" means 32 threads per inch. The 6 refers to #6 which is code for .138" diameter. I doubt he said to drill a 6/32 hole because there'd be no reason not to say 3/16 if that was the case. Plus that would be a huge hole (.188") for a #6 screw. www.WingsuitPhotos.com Quote Share this post Link to post Share on other sites bomb420 1 #21 September 14, 2007 I just met with Schumacher and attempted to get every replaceable part for his lineup. I also posted McMaster-Carr part numbers and descriptions of all his nuts and bolts included in his skydiving products. Of course you can order from me, but most are available from your local hardware store. Check it: http://www.gethypoxic.com/ringsight.php Blue Ones, -TrunkHYPOXIC Quote Share this post Link to post Share on other sites swilson 0 #22 September 17, 2007 The Unified thread number series machine screws are designated by the size, followed by the number of threads per inch. The size "code" is given by (number x 0.013")+0.060". So your 6-32 would have a nominal major diameter of (6 x 0.013) + 0.060 = 0.138". A clearance drill would be 9/64". The "correct" tap drill is calculated by (major diameter - 1/number of threads per inch). In this case, tap drill size would be 0.138-1/32 = 0.138-0.031 = 0.107". You can use either a #36 or a 7/64" drill. Quote Share this post Link to post Share on other sites Join the conversation You can post now and register later. If you have an account, sign in now to post with your account. Note: Your post will require moderator approval before it will be visible. Reply to this topic... × Pasted as rich text. Paste as plain text instead Only 75 emoji are allowed. × Your link has been automatically embedded. Display as a link instead × Your previous content has been restored. Clear editor × You cannot paste images directly. Upload or insert images from URL. Insert image from URL × Desktop Tablet Phone Submit Reply 0
sky490 0 #14 August 15, 2007 Just a note! Schumacher uses the Nylon 6-32 X .5 screw from Mcmaster Carr Part Number 91772A146 they cost $1.96 per humdred. Also to remove broken bolt: Use a small flat edge screw driver, heat the tip of the screw driver with a heat source (a match will work) push the screw driver into the Nylon bolt without turning it. You have created a slot for the screw driver. When this cools (several seconds) unscrew using the same now cool screw driver. Quote Share this post Link to post Share on other sites
avenfoto 0 #15 August 16, 2007 no, they use the 5/32. Quote Share this post Link to post Share on other sites
mr2mk1g 10 #16 August 16, 2007 Ordered a pack earlier today. Mcmaster Carr e-mailed back saying that "Due to the ever-increasing complexity of U.S. Export regulations... we cannot accept your order" (This was re an order to be sent to the UK). Who knew that exporting tiny nylon screws attracted so much difficulty with export regulations. Quote Share this post Link to post Share on other sites
The111 0 #17 August 16, 2007 Quoteno, they use the 5/32. Bryan, what exactly do you mean by 5/32? I've never heard of a 5/32 screw thread, but that doesn't mean it doesn't exist. What is the thread OD and the TPI?www.WingsuitPhotos.com Quote Share this post Link to post Share on other sites
avenfoto 0 #18 August 16, 2007 man i have no clue... i think its five thirty-seconds of an inch but i could be wrong... i just know that on the install instructions that came with the bracket (this is off the top of my head) it said to "drill a 6/32 hole ....then use the included 5/32 nylon machine screws to attach" or something to that effect... naturally i broke two (it comes with one replacement) the workaround (for me) was to just buy 4/40x1.5" nylon screws, which just barely fit through the threads on the bracket, and use a steel washer and nut, as well as a drop of silicone to finish it off... ill post photos later.. cya -b Quote Share this post Link to post Share on other sites
PhreeZone 15 #19 August 16, 2007 I think its funny that you were telling Terry that he doesn't know what he ships his gear with. Yesterday is history And tomorrow is a mystery Parachutemanuals.com Quote Share this post Link to post Share on other sites
The111 0 #20 August 16, 2007 And I find it funny that Terry refers to himself in 3rd person in his post. I didn't even realize it was him either... good thing because I lost his email address and I have a question I've been needing to ask him. Bryan, I would be careful with #4 nylon screws. Even stainless #4's are pretty damn weak. If you so much as bump that helmet the wrong way those screws may perform their "break job" prematurely. I'd go with #6's if I were you. Btw... the "32" in "5/32 hole" is part of a fraction, or .156" diameter. the "32" in a "6-32 screw" means 32 threads per inch. The 6 refers to #6 which is code for .138" diameter. I doubt he said to drill a 6/32 hole because there'd be no reason not to say 3/16 if that was the case. Plus that would be a huge hole (.188") for a #6 screw. www.WingsuitPhotos.com Quote Share this post Link to post Share on other sites
bomb420 1 #21 September 14, 2007 I just met with Schumacher and attempted to get every replaceable part for his lineup. I also posted McMaster-Carr part numbers and descriptions of all his nuts and bolts included in his skydiving products. Of course you can order from me, but most are available from your local hardware store. Check it: http://www.gethypoxic.com/ringsight.php Blue Ones, -TrunkHYPOXIC Quote Share this post Link to post Share on other sites
swilson 0 #22 September 17, 2007 The Unified thread number series machine screws are designated by the size, followed by the number of threads per inch. The size "code" is given by (number x 0.013")+0.060". So your 6-32 would have a nominal major diameter of (6 x 0.013) + 0.060 = 0.138". A clearance drill would be 9/64". The "correct" tap drill is calculated by (major diameter - 1/number of threads per inch). In this case, tap drill size would be 0.138-1/32 = 0.138-0.031 = 0.107". You can use either a #36 or a 7/64" drill. Quote Share this post Link to post Share on other sites
