motion guru
Diamond
- Joined
- Dec 8, 2003
- Location
- Yacolt, WA
Anyone have any idea what I am talking about?
When I was a kid, my dad would haul home aluminum hydraulic manifolds that were stacked as many as 4 high with cartridge valves throughout.
Each manifold was about 3 inches thick by about 4 inches by about 8 inches. I am probably off a bit in dimensions as this was at least 30 years ago.
My job was to completely disassemble them, pull cartridge valves, dowel pins, funky socket head cap screws so that I had a pile of pure aluminum and another pile of pure steel. (actually 55 drums). These would be hauled into town for better scrap prices than could be had if they were steel / aluminum mixed.
Those socket head cap screws had long threaded heads. SO, you could screw a manifold to a base plate and then the heads of those socket head bolts were also threaded so you could screw another manifold on top of the first one by threading the next set of bolts into the heads of the first set of bolts.
I have searched high and low on the internet and found stud nuts that are close to the same thing but not the same. I have found patents that refer to the exact units I am talking about and a magazine article that also refers to it, but I cannot find a place that has them or sells them.
These are the stud nuts . . . the problem being, that they aren't suitable for threading into the hex tool opening which I need in the application I have.
http://www.sunhydraulics.com/cmsnet/partspp.aspx?lang_ID=1&Cat_Level_0=1&Cat_Level_1=2068&Cat_Level_2=2283&Cat_Level_3=2529&Cat_Level_4=2686&Model_Id=4154&Unit_Type=USUnits&actiontype=navigation&actiontext=&relatedtype=&fromModel=
The bolts that I remember had socket heads about an inch long that were the same dimensions as a standard socket head cap screw - they were threaded so that you could screw another bolt into it (through the hex opening) after you tightened it. You could theoretically screw as many bolts together as you wanted.
Anyone have any ideas?
When I was a kid, my dad would haul home aluminum hydraulic manifolds that were stacked as many as 4 high with cartridge valves throughout.
Each manifold was about 3 inches thick by about 4 inches by about 8 inches. I am probably off a bit in dimensions as this was at least 30 years ago.
My job was to completely disassemble them, pull cartridge valves, dowel pins, funky socket head cap screws so that I had a pile of pure aluminum and another pile of pure steel. (actually 55 drums). These would be hauled into town for better scrap prices than could be had if they were steel / aluminum mixed.
Those socket head cap screws had long threaded heads. SO, you could screw a manifold to a base plate and then the heads of those socket head bolts were also threaded so you could screw another manifold on top of the first one by threading the next set of bolts into the heads of the first set of bolts.
I have searched high and low on the internet and found stud nuts that are close to the same thing but not the same. I have found patents that refer to the exact units I am talking about and a magazine article that also refers to it, but I cannot find a place that has them or sells them.
These are the stud nuts . . . the problem being, that they aren't suitable for threading into the hex tool opening which I need in the application I have.
http://www.sunhydraulics.com/cmsnet/partspp.aspx?lang_ID=1&Cat_Level_0=1&Cat_Level_1=2068&Cat_Level_2=2283&Cat_Level_3=2529&Cat_Level_4=2686&Model_Id=4154&Unit_Type=USUnits&actiontype=navigation&actiontext=&relatedtype=&fromModel=
The bolts that I remember had socket heads about an inch long that were the same dimensions as a standard socket head cap screw - they were threaded so that you could screw another bolt into it (through the hex opening) after you tightened it. You could theoretically screw as many bolts together as you wanted.
Anyone have any ideas?