Volume pricing for small hardware
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Volume pricing for small hardware
by James Nick Sears-2
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Hey all,
What distributors do you use to find a wide hardware selection (stuff like pretty small (#2-#4) thread-forming screws) with good pricing in the ~5k quantity range? I use McMaster quite a bit, but it seems like there's gotta be a better way than buying 4000 #2x1/2" screws in 50 packs for 14 cents a piece, yet my usual places don't seem to be working out very well in this quantity and size range. Will McMaster work on price at all in this quantity? Thanks, -Nick. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist |
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Re: Volume pricing for small hardware
by Josh Koffman
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On Tue, Nov 11, 2008 at 3:00 AM, James Nick Sears <lists@...> wrote:
> What distributors do you use to find a wide hardware selection (stuff > like pretty small (#2-#4) thread-forming screws) with good pricing in > the ~5k quantity range? I use McMaster quite a bit, but it seems like > there's gotta be a better way than buying 4000 #2x1/2" screws in 50 > packs for 14 cents a piece, yet my usual places don't seem to be > working out very well in this quantity and size range. Will McMaster > work on price at all in this quantity? In Canada I've used Spaenaur before (http://www.spaenaur.com/) with great results. Another source would be Fabory Metrican (http://www.fabory.com). Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist |
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Re: Volume pricing for small hardware
by Matt Pobursky-2
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I use Aaron's General Store online *a lot* for smaller quantities of all
types of fasteners. They have reasonable prices, fast shipping and almost always have whatever fastener I need. Their prices on moderate volumes like you are wanting are generally quite competitive. http://www.aaronsgeneralstore.com/ Matt Pobursky Maximum Performance Systems On Tue, 11 Nov 2008 03:00:01 -0500, James Nick Sears wrote: > Hey all, > > What distributors do you use to find a wide hardware selection (stuff > like pretty small (#2-#4) thread-forming screws) with good pricing in the > ~5k quantity range? I use McMaster quite a bit, but it seems like > there's gotta be a better way than buying 4000 #2x1/2" screws in 50 packs > for 14 cents a piece, yet my usual places don't seem to be working out > very well in this quantity and size range. Will McMaster work on price > at all in this quantity? > > Thanks, > -Nick. http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist |
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Re: Volume pricing for small hardware
by PicDude
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Look up Grainger and Fastenal -- they have branches all over the U.S.
I've actually negotiated volume pricing with the manager at Ace Hardware, and it's better than McMaster. Also, McMaster accidentally (?) left some packaging from their suppliers in one order, and the pricing is excellent. They have lots of hardware, but not screws for some odd reason ... http://www.seastrom-mfg.com Cheers, -Neil.
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Re: Volume pricing for small hardware
by BOB-35
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Mcmaster -Carr has almost anything you need and are fast to ship. but
you pay for that. With a little searching I found a lot of things at 1/2 the price they charge. But when I need things FAST I order from them. Everything I have gotten from them if I order by 3 PM I have the next day. Bob PicDude wrote: > Look up Grainger and Fastenal -- they have branches all over the U.S. > > I've actually negotiated volume pricing with the manager at Ace Hardware, > and it's better than McMaster. > > Also, McMaster accidentally (?) left some packaging from their suppliers in > one order, and the pricing is excellent. They have lots of hardware, but > not screws for some odd reason ... http://www.seastrom-mfg.com > > Cheers, > -Neil. > > > > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist |
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Re: Volume pricing for small hardware
by Martin Klingensmith
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BOB wrote:
> Mcmaster -Carr has almost anything you need and are fast to ship. but > you pay for that. With a little searching I found a lot of things at > 1/2 the price they charge. But when I need things FAST I order from > them. Everything I have gotten from them if I order by 3 PM I have the > next day. > > Bob McMaster doesn't like to sell large quantities of things. They're the place you go to when you need a widget and you don't really care how much it costs and you wouldn't know where else to look. - Martin -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist |
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Re: Volume pricing for small hardware
by Danny Miller-2
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Small Parts Inc is another supplier to look at. I have used them for
some aluminum screws before. Not a big thing but they had what I specifically needed and McMaster-Carr did not. http://www.smallpartsinc.com/ Danny BOB wrote: > Mcmaster -Carr has almost anything you need and are fast to ship. but > you pay for that. With a little searching I found a lot of things at > 1/2 the price they charge. But when I need things FAST I order from > them. Everything I have gotten from them if I order by 3 PM I have the > next day. > > Bob > > PicDude wrote: > >> Look up Grainger and Fastenal -- they have branches all over the U.S. >> >> I've actually negotiated volume pricing with the manager at Ace Hardware, >> and it's better than McMaster. >> >> Also, McMaster accidentally (?) left some packaging from their suppliers in >> one order, and the pricing is excellent. They have lots of hardware, but >> not screws for some odd reason ... http://www.seastrom-mfg.com >> >> Cheers, >> -Neil. >> >> >> >> >> >> > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist |
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[PIC] current sensing with Hall sensor
by Dr Skip
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I don't remember who asked, but there was a discussion about using wire loops
and Hall effect sensors for current monitoring a while back. I came across this and will be trying it, so maybe this will help the OP as well: http://www.allegromicro.com/en/Products/Part_Numbers/0756/index.asp 20 or 40 mV/A bidirectional and isolated. Only a decoupling cap suggested. Should be a nice easy pairing for a pic. Even cheaper than a shunt alone... -Skip -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist |
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Re: [PIC] current sensing with Hall sensor
by Antonio L. Benci-2
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I have just finished a design with this device and an very pleased with the performance. What I have done is used two in parallel with an instrumentation opamp providing 0 -> 5VDC out which equates to 0 -> 50A scaling. I would advise any one using the Allegro device to throughly read all relevant appnotes to obtain the best performance.
A. Benci. Dr Skip <drskip@...> wrote:> > I don't remember who asked, but there was a discussion about using wire > loops > and Hall effect sensors for current monitoring a while back. I came > across this > and will be trying it, so maybe this will help the OP as well: > > http://www.allegromicro.com/en/Products/Part_Numbers/0756/index.asp > > 20 or 40 mV/A bidirectional and isolated. Only a decoupling cap > suggested. > Should be a nice easy pairing for a pic. Even cheaper than a shunt > alone... > > -Skip > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist |
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Re: [PIC] current sensing with Hall sensor
by Bob Axtell-3
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We use one in our instrument, to determine when the motor is pulling
current and determine which way it is being turned. It works OK; I'd like more sensitivity (FS = 10A would be ideal) but it works fine. Note: you MIGHT need to clean up the current if the motor is driven by a PWM motor speed control. An LC filter and an MOV work perfectly for this. --Bob On Thu, Nov 13, 2008 at 10:19 PM, Dr Skip <drskip@...> wrote: > I don't remember who asked, but there was a discussion about using wire loops > and Hall effect sensors for current monitoring a while back. I came across this > and will be trying it, so maybe this will help the OP as well: > > http://www.allegromicro.com/en/Products/Part_Numbers/0756/index.asp > > 20 or 40 mV/A bidirectional and isolated. Only a decoupling cap suggested. > Should be a nice easy pairing for a pic. Even cheaper than a shunt alone... > > -Skip > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist |
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