just though i'd post up how i've done my jhooks for my rack ,
grade 10.9 m24 bolts with washers welded on (still need to have that done with mine) ..
total cost is around $16 off ebay for the bolts,nuts and washers.
the welding should be next to nothing, my welder usualy just does things like this for free.
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Thread: easy way of making solid jhooks
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12-15-2012, 05:49 AM #1
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easy way of making solid jhooks
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12-15-2012, 08:53 AM #2
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I did this to my rack a year ago. My rack has 1 1/8 inch hole and all tractor supply co had was 1 inch grade 8 bolt. I bought them and it wasnt too long till they started to bend a lil. Now I just use them to hold some spring collars
If you get some that are a snug fit, it should work fine. However if they are off even a lil bit like mine, once the weight gets heavy they will start to bend. But i didnt get mine welded, so if you get yours welded it should be fine.Last edited by 817boy; 12-15-2012 at 09:01 AM.
It surprises me how many people refuse to buy equipment from Elitefts because its too expensive but they will buy equipment from their competitors, then continue to go on EFS website to educate themselves for FREE
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12-15-2012, 08:57 AM #3
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12-15-2012, 09:19 AM #4
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how did you stop the side the bolt head is on sliding back into the rack without welding washers down?
personaly, i don't think i'm ever going to get to the point where i'd be worrid about the bolts strength, my jhooks on my strut rack where made from 40x40x2.5mm channel and didn't move with 300kg+ on.
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i was going to use dumbells first too, but couldnt find out how a dumbell is put together so i wasn't too sure of the strength, i am using them to put my 20kg plates on at the bottom of my rack.-!!!---!!!- No Excuses Homemade Equipment Crew #4 -!!!---!!!-
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12-15-2012, 10:02 AM #5
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12-15-2012, 11:37 AM #6
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12-15-2012, 11:56 AM #7
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12-15-2012, 12:14 PM #8
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12-15-2012, 12:51 PM #9
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12-15-2012, 05:28 PM #10
What kind of bolt grade is the strongest? Can you get a strong bolt in a smaller diameter, or is there a minimum diameter to each grade?
Yeah Im surprised they would bend being so short.[]---[] Equipment Crew #6 []---[]
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12-16-2012, 03:41 AM #11
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i'm guessing the duct tape was giving way rather than the actual bolt bending,
not sure if they don't make certain sizes in sone grades but im sure grade reffers to the material used (tensil strength, yeild strength etc)
the pipe idea is good but the only pipe i have in my scrap pile has a 24mm ID, so won't fit, will still just be welding it on tomorow.-!!!---!!!- No Excuses Homemade Equipment Crew #4 -!!!---!!!-
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12-16-2012, 08:57 AM #12
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I guess i should have been more specific. they didnt bend but they are angled and if you put the bar on the hook it slides down to the head of the bolt. Like i said its because i needed a 1 1/8 inch bolt and tractor supply only had 1 inch. sorry for the misunderstanding. Its not the bolts fault its the fact that the bolt is a size to small.
It surprises me how many people refuse to buy equipment from Elitefts because its too expensive but they will buy equipment from their competitors, then continue to go on EFS website to educate themselves for FREE
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12-16-2012, 11:15 AM #13
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12-16-2012, 11:31 AM #14
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it depends on the application, there is no one all, be all strongest. Some are strong in one area while sacrificing in others, ex: B-7 bolts are for pressure situations, have more yield strength than you will likely ever need, but have very little shear strength.
A grade 8, however, being hardened, will generally snap before they bend. Whereas a grade 2, not being hardened, will bend before breaking.Boomer Rep Crew #1
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12-16-2012, 11:57 AM #15
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Nice job Owas, I'm really tempted to do the same for my rack now. I looked into it before but I couldn't find the right size, now ebay has loads.
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12-16-2012, 01:21 PM #16
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12-17-2012, 04:38 AM #17
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12-17-2012, 05:38 AM #18
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I probably would've welded a larger diameter fender washer to the head of the bolt just to be sure the bar wouldn't roll off.
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12-17-2012, 05:44 AM #19
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12-17-2012, 05:59 AM #20
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