Video Discription |
Hey guys, its Rick at Elijah Tooling. This is gonna take longer than 2 minutes so I’m not gonna do that whole thing, but we had a request recently from somebody who asked us “what do you use all with all those fasteners for? What is the point of having all of these different fasteners?” So I’m just going to go through it. I am going to try to make it as quick as possible, but I am going to try to give you some ideas as to why you might use a particular fastener.
invert-a-bolt fastener
I’m going to start today with this one. Because this, we call this the classic fastener and it is the most sold product that we have. I also want you to notice that sometimes you’re gonna have some coloration to your parts, so don’t think that we’re doing anything wrong, you can see that some of them have this brownish coloration. Actually, that’s a result of a secondary process that is proprietary, so we don’t disclose what it is, but it’s not really a process in which the colors are gonna come out the same every time. So, I think about it like, maybe, buying a leather coat, it’s a nice high-quality product, but sometimes it looks a little bit different from time to time. What do we use this for? Well this fastener has a 1-inch outer body, a 1/2" 13 stud that comes up into your part or whatever you’re holding. You can see that there are several fasteners here that have the same body. That was our goal when we made these, that we would have common fasteners that would fit inside this hole size. So, you can see right here, these two are common and this one is common with several of the fasteners. So this is one of the reasons why we have the different housing sizes. So, for example with the 1 ¼" housing we have a 5/8" stud and we have a ½" stud. In the 1" body we have a half inch stud and we have a 3/8" stud, and we also have some variations of ½".
So, let’s talk about what the classic fasteners used for—it’s used for just about everything and that’s why we sell so many of these. People will use them for aluminum, a lot of high-speed machining is done holding the parts with this. It’s also used with titanium and steels, and I’ve heard it to be used with just about any material. That half inch stud is very adequate for most applications. But when you’ve got an application where you need more holding force, then we want to move to say the 5/8". And again, you can have your fixture plate set up for 5/8" and you go “oh well I don’t really need that after all”, so you can swap it out with the ½" and it’s the same idea here as well.
Invert-a-bolt Fastener for CNC Workholding
5/8" Fastener
So, this fastener has 5/16" hex in it. Which means it can develop significantly greater torque than the one that has ¼". So, check out our website for the specs on that. I want to say that this is like 100 lb/ft and this is 45lb/ft. The bottom line is how much force you can hold with these fasteners or how much weight or whatever it is you are trying to hold is entirely dependent on the hex size. Now that’s when we start talking about something like this.
CNC Workholding Fastener
7/8" Invert-a-bolt Fastener
This is the biggest thing we make it is a 7/8" 14 thread and it has a 3/8"s hex in it. So, with this big boy we think in terms of 30,000+ lbs. You want to hold a building? This is your man.
So, lets go through. We talked about the classic, then we have a modification of the classic which is the -121 which has basically just a shorter stick out.
That’s all it is. It’s going to allow you to use a thinner plate size than you would with this one. Then we have of course the premium fastener, we have a whole video on this particular fastener. It’s similar to the classic, but you can already see that it’s got some changes to it, got a different number of holes in the front, it’s also got a seal in the back of this, and the back of it looks different too. So, this is a premium upgrade from this.
And then we have the shorter stick out for the 121. Then we have 3/8", so here’s where you might consider, hey I might want to use a smaller size if you’re trying to save material, you can get a little bit closer to your tabbing-- when you’re tabbing your picture frames....
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