Hollow threaded rod/screws/studs

Mayvik · 03-28-2008, 06:03 PM

I have a gigantic e-cookie for anyone that can find me a place that sells hollow threaded rod, set screws or studs made out of metal with 1/4-28 threading! McMaster only has 1/4-20, Smallparts has bupkis, and I can't seem to Google my way to victory either.

hvacman250 · 03-28-2008, 07:40 PM

Youre not going to find it. It will have to be made. In fact, 1/4-28 threaded rod wil have to be machined.

Mayvik · 03-29-2008, 04:12 PM

Well, McMaster has 1/4-28 rod in a variety of metals, finishes and lengths...but no hollow.

Would it be easier to retap a 1/4-28 hole to 1/4-20, or try to get some rod drilled out?

noxx55 · 03-29-2008, 05:37 PM

I dont think it is possible to tap a 1/4-28 hole to 1/4-20. You would have to go bigger.

Tugboater203 · 03-30-2008, 12:30 PM

The Nutty Company - Online fastener supplier of nuts, bolts, screws, washers, rivets, threaded rod and pins, hardware and more. Thay have it in threaded rod but not hollow, you also get a few options on material (including brass!). The company is old but the site is new and doesn't have a search function

.
Tug

pillage · 03-30-2008, 02:10 PM

You can always use a die to thread some stainless tubing, depending on your required end use.

Mayvik · 03-31-2008, 01:05 PM

Unfortunately what I need to do is go from a 1/4-28 threaded hole to a 5/32 or 1/16 (don't recall off the top of my head) barbed fitting somehow. The only barbed fittings with that threading I've found are plastic for the medical industry, so I figure I'll need to just run a hollow screw out and then get some kinda brass adapter fitting to attach a normal barb.

Brass threaded might work..probably easier to drill out than stainless if I have to resort to that. I seriously need to get my father's old drill press shipped to me

Mayvik · 03-31-2008, 01:47 PM

ChaChing!

Beswick Engineering: 1/4-28 Ext THD To Barb - MH

Just have to measure and see if the hole I have will support the 3/16" of threading.

Or if I can get some hollow rod/screws in 1/4-28, this will let me convert to 10-32 for convenience.

Beswick Engineering: 1/4-28 Ext THD to 10-32 Int THD, Straight - MFA

@)#%...fail
"Minimum Order:
There is a $50.00 minimum for each purchase order placed."

pillage · 03-31-2008, 02:06 PM

Adapters and fittings 1/4-28 to 10-32
Cheminert 1/4-28 to Valco 10-32 ZDV adapter
Threaded Hose Barb Adapter Fittings - NPT UNF.
CHROMATOGRAPHY ADAPTERS, FITTINGS & TUBING

Mayvik · 03-31-2008, 02:16 PM

Quote:

Originally Posted by pillage

Adapters and fittings 1/4-28 to 10-32
Cheminert 1/4-28 to Valco 10-32 ZDV adapter
Threaded Hose Barb Adapter Fittings - NPT UNF.
CHROMATOGRAPHY ADAPTERS, FITTINGS & TUBING

Dude, you're the linkmaster! Unfortunately..

Link 1: Plastic (PEEK)
Link 2: Found it..that's the plastic ones I was talking about

But
Line 3: Perfect, but $30 per piece on the thread adapter!

Hose barbs looks like the way to go, just need to figure out what size I have (or I suppose I could just buy one of each).

Thanks!

Edit: $50 min order for site 3 as well, and I didn't notice all the hose barbs are plastic. Looks like I'm in for $30 for a thread adapter...and then $20 worth of macroline fittings? lol

03-28-2008, 06:03 PM	#1 (permalink)
Mayvik 1-866-MEAT-4-YU Join Date: May 2007 Location: Binghamton NY	Hollow threaded rod/screws/studs I have a gigantic e-cookie for anyone that can find me a place that sells hollow threaded rod, set screws or studs made out of metal with 1/4-28 threading! McMaster only has 1/4-20, Smallparts has bupkis, and I can't seem to Google my way to victory either.

03-28-2008, 07:40 PM	#2 (permalink)
hvacman250 Seasoned Member Join Date: Nov 2006	Youre not going to find it. It will have to be made. In fact, 1/4-28 threaded rod wil have to be machined. __________________ Feedback

03-30-2008, 12:30 PM	#5 (permalink)
Tugboater203 www.yankeepaintball.com Join Date: Mar 2006 Location: Oxford,CT	The Nutty Company - Online fastener supplier of nuts, bolts, screws, washers, rivets, threaded rod and pins, hardware and more. Thay have it in threaded rod but not hollow, you also get a few options on material (including brass!). The company is old but the site is new and doesn't have a search function . Tug __________________ Connecticut's woodsball field! Bookmark www.yankeepaintball.com Paintball is Fun! What others think of me Tugs Feedback Yankee Paintball will close for the winter Nov 30th. We'll reopen in April '09. Thanks for your support!

03-30-2008, 02:10 PM	#6 (permalink)
pillage Bakasan Join Date: Apr 2006 Location: Yorktown, Virginia	You can always use a die to thread some stainless tubing, depending on your required end use. __________________ Usefull Latin Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt. Translation: When catapults are outlawed, only outlaws will have catapults. Catapultam habeo. Nisi pecuniam omnem mihi dabis, ad caput tuum saxum immane mittam. Translation: I have a catapult. Give me all the money, or I will fling an enormous rock at your head. My Feedback Thread

03-31-2008, 01:47 PM	#8 (permalink)
Mayvik 1-866-MEAT-4-YU Join Date: May 2007 Location: Binghamton NY	ChaChing! Beswick Engineering: 1/4-28 Ext THD To Barb - MH Just have to measure and see if the hole I have will support the 3/16" of threading. Or if I can get some hollow rod/screws in 1/4-28, this will let me convert to 10-32 for convenience. Beswick Engineering: 1/4-28 Ext THD to 10-32 Int THD, Straight - MFA @)#%...fail "Minimum Order: There is a $50.00 minimum for each purchase order placed." Last edited by Mayvik; 03-31-2008 at 01:55 PM.. Reason: More..and fail

03-29-2008, 04:12 PM	#3 (permalink)
Mayvik 1-866-MEAT-4-YU Join Date: May 2007 Location: Binghamton NY	Well, McMaster has 1/4-28 rod in a variety of metals, finishes and lengths...but no hollow. Would it be easier to retap a 1/4-28 hole to 1/4-20, or try to get some rod drilled out?

03-31-2008, 01:05 PM	#7 (permalink)
Mayvik 1-866-MEAT-4-YU Join Date: May 2007 Location: Binghamton NY	Unfortunately what I need to do is go from a 1/4-28 threaded hole to a 5/32 or 1/16 (don't recall off the top of my head) barbed fitting somehow. The only barbed fittings with that threading I've found are plastic for the medical industry, so I figure I'll need to just run a hollow screw out and then get some kinda brass adapter fitting to attach a normal barb. Brass threaded might work..probably easier to drill out than stainless if I have to resort to that. I seriously need to get my father's old drill press shipped to me

03-31-2008, 02:06 PM	#9 (permalink)
pillage Bakasan Join Date: Apr 2006 Location: Yorktown, Virginia	Adapters and fittings 1/4-28 to 10-32 Cheminert 1/4-28 to Valco 10-32 ZDV adapter Threaded Hose Barb Adapter Fittings - NPT UNF. CHROMATOGRAPHY ADAPTERS, FITTINGS & TUBING __________________ Usefull Latin Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt. Translation: When catapults are outlawed, only outlaws will have catapults. Catapultam habeo. Nisi pecuniam omnem mihi dabis, ad caput tuum saxum immane mittam. Translation: I have a catapult. Give me all the money, or I will fling an enormous rock at your head. My Feedback Thread

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