 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
| HomeDiscussion Groups General ModelsRailroadsRocketsRadio Controlled Air ModelsHelicoptersLand ModelsWater ModelsModelGeeks.com Contact UsLink To UsSearch & Site Map |
Model Forum / General / Models / April 2010Screws?
Looking for two 1/4 x 20 tpi by 1-1/4" (or longer) countersunk allen head screws/bolts - any suggestions? (I think that's UNC? or maybe BSW? Are they interchangeable? I never got the hang of that) Thanks, -- Peter Fairbrother --Sounds like SAE to me; 1/4"20 is National Course thread. Proper name for the head is socket flat head machine screw.  Signature"Steamboat Ed" Haas : Come see my stuff Hacking the Trailing Edge! : at Maker Faire!! www.nmpproducts.com ---Decks a-wash in a sea of words--- > --Sounds like SAE to me; 1/4"20 is National Course thread. Proper >name for the head is socket flat head machine screw. I've got a box (100) full of 1/4" 20tpi BSW CSK head screws. only problem is they're 1/2" long and cross head. I needed 8 for a job :-( Mark Rand RTFM There'a a current advert in homeworkshop.org.uk for 1/4" BSF screws. > Looking for two 1/4 x 20 tpi by 1-1/4" (or longer) countersunk allen head > screws/bolts - any suggestions? [quoted text clipped - 5 lines] > > -- Peter Fairbrother You could try Emkay screw supplies, they list BFW, BSF, UNC, UNF in csk allen screws the lenght uu need David > Looking for two 1/4 x 20 tpi by 1-1/4" (or longer) countersunk allen head > screws/bolts - any suggestions? [quoted text clipped - 5 lines] > > -- Peter Fairbrother >Looking for two 1/4 x 20 tpi by 1-1/4" (or longer) countersunk allen >head screws/bolts - any suggestions? > >(I think that's UNC? or maybe BSW? Are they interchangeable? I never got >the hang of that) No they are not interchangeable. BSW is 55 degree thread form, UNC is 60 degree. Shortening is also different BSW is H/6 major and minor, while UNC is H/8 major and H/4 minor for external thread. I believe 1/4 x 20 BSW is standard small camera tripod socket thread if that provides a convenient gauge. That doesn't help you with a source though. I've got a note of this place as a source, but I have never had to use them so no idea of the minimum order qty http://www.nssocketscrews.com/index.php/html/standard/socket-countersunk Alan |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2012 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.