$80 bolt and 10mm zerks

/ $80 bolt and 10mm zerks #1  

buyerjohn

Silver Member
Joined
May 25, 2006
Messages
167
Location
Berkshires, MA
Tractor
DK45s with cab
The bolt which secures the DK45s cabin door shock absorber to the cab roof snapped. This bolt has threads (which screw into the roof of the cab) with a small ball on top which the shock absorber snaps onto. I only need to replace the threaded bolt/ball but the dealer says kioti requires the entire unit to be purchased - $80. Anybody know where i can purchase just the bolt with the ball on top? or what it's called?

Also, been pulling my hair out on zerks. Finally figured out that my tractor uses 10mm zerks with tapered threads which can't be found anywhere. Anybody have a source or is the best solution to drill the entire hole out to be 10mm straight threads?

thanks, John.
 
/ $80 bolt and 10mm zerks #2  
I believe your referring to a lift strut, rather than a shock absorber.

Many automobile manufacturers use bolts with a round end, to snap a strut on to.

I would go to an auto salvage yard and check compatibility.

It is very likely they used an automotive part.
 
/ $80 bolt and 10mm zerks #3  
Auto parts store would be my first stop. As for the zerks, my dealer gave me a bunch of replacement zerks after I broke one. They can't be that expensive if he just gave me about 6 of them.
 
/ $80 bolt and 10mm zerks #4  
I got some 10mm zerks from The Tractor Supply Store.
 
/ $80 bolt and 10mm zerks #5  
I bought some at Fastenal. They were actually cheaper than tractor supply.

I bought a bag of 10mm and 8mm. Cost about $ 5.50/bag of ten.
 
/ $80 bolt and 10mm zerks
  • Thread Starter
#6  
I got some 10mm zerks from The Tractor Supply Store.

I bought them too but they don't fit, TSC are straight thread, not tapered.
 
/ $80 bolt and 10mm zerks #7  
If you still have the original broken bolt, why not weld it back together and run it through a die to fix the threads.
 
/ $80 bolt and 10mm zerks
  • Thread Starter
#8  
I believe your referring to a lift strut, rather than a shock absorber.

Many automobile manufacturers use bolts with a round end, to snap a strut on to.

I would go to an auto salvage yard and check compatibility.

It is very likely they used an automotive part.

great idea, thanks!

...here is just one place that i found them online...they are called ball studs.

Lift Supports Hardware Accessories
 
/ $80 bolt and 10mm zerks
  • Thread Starter
#9  
If you still have the original broken bolt, why not weld it back together and run it through a die.

1/2 half the bolt is still in the cab frame so i need to drill it out...I'm not sure my welding skills are good enough to weld it in place without really messing up the cab frame...actually, i know they are not good enough!

what would you guys use to extract the broken bolt in the frame? its about 1/2" diameter...drill and then use a screw extractor? i never seem to have good fortune with extractors :(


PS... Island Tractor/others...you guys are very knowledgeable...could you take a look at my recent dk45s stalling thread and add your valuable thoughts please?
 
Last edited:
/ $80 bolt and 10mm zerks
  • Thread Starter
#10  
I bought some at Fastenal. They were actually cheaper than tractor supply.

I bought a bag of 10mm and 8mm. Cost about $ 5.50/bag of ten.

are they tapered or straight thread?
 
/ $80 bolt and 10mm zerks #11  
1/2 half the bolt is still in the cab frame so i need to drill it out...I'm not sure my welding skills are good enough to weld it in place without really messing up the cab frame...actually, i know they are not good enough!

what would you guys use to extract the broken bolt in the frame? its about 1/2" diameter...drill and then use a screw extractor? i never seem to have good fortune with extractors :(

Yes, screw extractor is needed if it broke off flush. I agree with your assessment of how well they work but at least this is a good sized bolt. I have bad luck with smaller bolt extractors. Hit the bolt with some penetrating oil like PB Blaster first or try to heat it (?tip of electric soldering iron) just to loosen it up a bit before extracting.
 
/ $80 bolt and 10mm zerks #12  
......... Hit the bolt with some penetrating oil like PB Blaster first or try to heat it (?tip of electric soldering iron) just to loosen it up a bit before extracting.

What Island said BEFORE you drill and then use a left-hand twist drill ...... might come out without the use of an extractor :)
 
/ $80 bolt and 10mm zerks #13  
I bought some at Fastenal. They were actually cheaper than tractor supply.

I bought a bag of 10mm and 8mm. Cost about $ 5.50/bag of ten.

What about LK3054s...do they need the tapered 10mm zerks too?
 
/ $80 bolt and 10mm zerks #14  
The zerks are often different even on the same tractor, backhoe, etc.
Take one out and match it to what your Kioti dealer sells is the easiest way. They're pretty cheap, even through the dealers, and I can assure you TSC and automotive stores don't have what you need.

RE: ball stud. Take a center punch and small ball pein hammer and tap on the center of the broken stud after using penetrating oil to help free the threads. Then using a cobalt bit with self starting/centering tip, drill out the stud to the proper size to insert a hardened extractor. Remove broken stud, replace with non-broken one.
 
/ $80 bolt and 10mm zerks
  • Thread Starter
#15  
The zerks are often different even on the same tractor, backhoe, etc.
Take one out and match it to what your Kioti dealer sells is the easiest way. They're pretty cheap, even through the dealers, and I can assure you TSC and automotive stores don't have what you need.

RE: ball stud. Take a center punch and small ball pein hammer and tap on the center of the broken stud after using penetrating oil to help free the threads. Then using a cobalt bit with self starting/centering tip, drill out the stud to the proper size to insert a hardened extractor. Remove broken stud, replace with non-broken one.

thanks for the ball stud tip!
 
/ $80 bolt and 10mm zerks #16  
You could if nothing else works put a nut small enough to fit on the end of the bolt put a heavy tack inside the nut don't get it too hot putanother tack after it cools down . Put a socket on the end of the nut and unscrew the bolt
 
/ $80 bolt and 10mm zerks #17  
Friend of mine had a pair of larger version ball studs on his boat, that held up the ski rope mount. One was rusty and broke, the other got bent when the first one broke loose. I took the old one and made him a couple of new ones out of stainless and they worked great. He found a supplier for them later, and bought a couple, and when he sold the boat, he replaced them with regular ones, and kept the stainless. His next boat used a different type of mount, so the stainless ball studs are just sitting on a shelf.
David from jax
 
/ $80 bolt and 10mm zerks #18  
Both mcmaster Carr (www.mcmaster.com) and defender (www.defender.com) have the lift strut ball studs in stainless steel. In addition if you cannot get the old stud out, there are plate mounted ball studs that you may be able to make work.
 
/ $80 bolt and 10mm zerks
  • Thread Starter
#19  
thanks for the tips ... i ordered a new one and will try to tack a nut onto the broken end that's still stuck.
 
/ $80 bolt and 10mm zerks #20  
Don't forget - tack from the inside of the nut. Less damage to surrounding area.
 

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