Great deals on bolts, hangers, and other hardware

If the rock is hard, you're much better off using 3/8" stud bolts cost wise, the powers/dewalt powerstud is a commonly used solid one as well as the Hilti KB3. I haven't used the ones in hownot2.com/collections/wedge but I'm sure some others here could give feedback. There's plenty of selection on hangers on hownot2 or buy them direct from fixe. 

I have yet to find a combo that beats the CTW sleeve bolts on Raumer hangers. You can put a bolt in for right around $4.30 with all stainless gear. That would be the price to beat.

Oliver Dattilowrote:

I have yet to find a combo that beats the CTW sleeve bolts on Raumer hangers. You can put a bolt in for right around $4.30 with all stainless gear. That would be the price to beat.

That’s pretty darn cheap, you can still get studs cheaper if you shop around eBay, etc. https://www.tannerbolt.com/pow-07313-3-8-x-3-powers-power-stud-wedge-expansion-anchors-304-stainless-steel

I’d be hesitant about obsessing over cost as the number one deciding factor over quality. That’s already a great price, you’re unlikely to find hangers cheaper than $2 an peice outside of close out deals.

Oliver Dattilowrote:

I have yet to find a combo that beats the CTW sleeve bolts on Raumer hangers. You can put a bolt in for right around $4.30 with all stainless gear. That would be the price to beat.

I'm at $3.15 or so with Raumer hanger and eBay Powers wedge bolt

eBay is the jam for wedge bolts. Just gotta keep looking and they pop up.
I have never paid more than a buck a bolt at worst when finding eBay deals.

I had a batch of Powers power studs that had a very sharp angle on the cone. occasionally the sleeve would pop off the cone and render the placement useless and PINTA to pull the bolt and start over. I no longer use them.  The Red Head  WW-3830 has a much gentler angle on the cone allowing it to be more reliable to catch and tighten properly in my experience. I installed a few hundred Hilti Quick bolts and they were my favorite  wedge bolt but they are super expensive. 

Nick Goldsmithwrote:

I installed a few hundred Hilti Quick bolts and they were my favorite  wedge bolt but they are super expensive. 

The price for their 316 stainless is so ridiculous now I can’t imagine anyone actually buying them

Nick Goldsmithwrote:

I installed a few hundred Hilti Quick bolts and they were my favorite  wedge bolt but they are super expensive. 

We used to get boxes of these things on ebay, the ss variety, for 25 bucks a piece back in the 2010s. Bummer they've gotten so expensive. 

I think I got three boxes from eBay for a great price about 2012 or 13 but never found another good deal on them since. 

Mr Rogerswrote:

eBay is the jam for wedge bolts. Just gotta keep looking and they pop up.
I have never paid more than a buck a bolt at worst when finding eBay deals.

Proof in the pudding. 74qty 3" 304ss power studs for $23 shipped.

out of stock and I don't like powerstuds. unless they changed the cone shape since the batch I had it's too sharp of an angle. 

OOS because I bought em' all =)

Here is a comparison between the USA made and China made power stud. I prefer the china made version because it has rolled threads and is less prone to galling if you strike the nut. The USA made one IME will gall wayyy easier if you mis-strike.

These are both "E" versions of the 304ss power-stud

The USA one is 3.75" overall and the China version 3.5". Dewalts documentations state an E length can be anywhere from 3.5-4"....isn't that neat.

You can see the rod stock is thicker on the Chinese one as is needed when rolling threads compared to cutting them. When cutting threads this extra material is not needed.

The USA version cone is rounder (the version you say you prefer) compared to the Chinese one.
the Chinese version cone is .001" larger Ø than US.
The Chinese version and US version appear to have the exact same sleeve, with the Chinese version when measured at the bumps of the sleeve is also .001" larger Ø.....which makes enough sense  compared with cone Ø being that much larger as well.

The chamfered head of the China version is rounder and "shorter", which is neither here nor there to me, but another "tell" between the two versions.

Probably way too much info that few will care about, but if you are buying power studs on eBay and have clear picture of the item, you can now tell which country of MFG you are getting and know the pedantic details to draw a conclusion.

seems like the one on the left has a gentler angle on the shoulder of the cone. the one on the right has that sharp angle that makes it easier for the sleeve to pop off or start spinning instead of tightening. 

Mr Rogerswrote:

OOS because I bought em' all =)

Here is a comparison between the USA made and China made power stud. I prefer the china made version because it has rolled threads and is less prone to galling if you strike the nut. The USA made one IME will gall wayyy easier if you mis-strike.

These are both "E" versions of the 304ss power-stud

The USA one is 3.75" overall and the China version 3.5". Dewalts documentations state an E length can be anywhere from 3.5-4"....isn't that neat.

You can see the rod stock is thicker on the Chinese one as is needed when rolling threads compared to cutting them. When cutting threads this extra material is not needed.

The USA version cone is rounder (the version you say you prefer) compared to the Chinese one.
the Chinese version cone is .001" larger Ø than US.
The Chinese version and US version appear to have the exact same sleeve, with the Chinese version when measured at the bumps of the sleeve is also .001" larger Ø.....which makes enough sense  compared with cone Ø being that much larger as well.

The chamfered head of the China version is rounder and "shorter", which is neither here nor there to me, but another "tell" between the two versions.

Probably way too much info that few will care about, but if you are buying power studs on eBay and have clear picture of the item, you can now tell which country of MFG you are getting and know the pedantic details to draw a conclusion.

It sounds like you're saying the USA manufactured bolts are machined, not rolled? If so, that doesn't seem like a "pedantic detail": my understanding is that machined bolts can fail at surprisingly low forces (<10kn?). Am I misunderstanding something?

Derek Woodswrote:

It sounds like you're saying the USA manufactured bolts are machined, not rolled? If so, that doesn't seem like a "pedantic detail": my understanding is that machined bolts can fail at surprisingly low forces (<10kn?). Am I misunderstanding something?

That is correct. Machined / Cut threads. Indeed part of my reasoning....
The cut rolled threads info came from old documentation (not mine). A few discussion around powers bolts have gone down over the last decade where folks have corroborated that. Also Looking at the bolts if you are familiar enough with cut and rolled threads you can discern by looking.
In testing I have been a part of, supposed cut three 3/8 dewalt SD6 bolts were, in shear, hitting low 40kn. In tension they were breaking out of the rock at lowest 13ish KN, but not breaking in threads.

as always, manufacturers can and do change suppliers. This info could be out of date as of yesterday and could make things more confusing. But again, watch some videos on machined and rolled threads, and look up examples. There are some good vids on YouTube, and various fastener supplier websites.

EDIT: I emailed them, and will attempt to call them tomorrow AM to see if I can get some clarity.

both of those threads look rolled to my eye, but i'm just looking at a picture and not holding them...

https://ebay.us/m/wh6d6Y

Qty.200 Powers 3/8" X 2-3/4" 7312SD4 Power-Stud+SD4 Strength Design SS Wedge Anchor 

128.80 x 200 +15.80 shipping.

Equals .72 cents ea.

Guess I’ll ask here since the threads semi hihacked for powers/dewalt bolt discussion.  Wasn’t there some question on whether the SD6/SD4s with the knurled cones were ok to use for climbing vs the regular power studs (non knurled)?  Might have been a hownot2 video on it?

Adam Wwrote:

Guess I’ll ask here since the threads semi hihacked for powers/dewalt bolt discussion.  Wasn’t there some question on whether the SD6/SD4s with the knurled cones were ok to use for climbing vs the regular power studs (non knurled)?  Might have been a hownot2 video on it?

I was part of those tests.
The SD6 bolts came out in axial, not breaking, but coming out of the rock at some low numbers. like 13kn.
That classic power stud stayed in the rock and sheared off at an acceptable load.
Both were more than strong enough in shear loads, with the SD6 hitting 40kn.... I would be fine using the sd4/sd6 and they can be had for cheaper regulalrly for the sd6 (316ss) but do like the regualr power-stud due to its very consistent results in pull testing. I would be a wee bit hesitant using the sd6 maybe in pure axial conditions like a roof, but still prob gonna be just fine.

onward:
Dewalt reached back out and said "The threads on our wedge anchors are typically rolled these days…which part specifically are you asking about?"....so I wrote back a long letter explaingin the conundrum with part numbers and differences in bolts with the same part # and photos to boot. I asked for a way to know what version I am buying.... so we wait a little more!

Good deal on eBay

Can't post a link for some stupid reason, but this is the name of the listing

"Lot of 50 Concrete Wedge Anchor Stainless Steel 3/8” x 2 ¼” "

Bolts are a dollar a piece