Ask Your Question

Angie's List Answers is the trusted spot to ask home improvement and health questions and get answers from service companies, health providers and consumers. For ratings and reviews on companies in your area, search Angie's List.

Top 30 Days Experts
Rank Leader Points*
1 kstreett 240
2 Guest_9020487 110
3 Guest_9190926 105
4 GoldenKid 100
5 ahowell 95
6 KnowledgeBase 95
7 skbloom 80
8 Guest_98024861 70
9 Guest_9311297 70
10 Guest_9400529 70

*Updates every 4 hours

Browse Projects By Category

Question DetailsAsked on 5/2/2012

How to remove a hex nut that has rounded corners

Do you have the same question? Follow this Question

2 Answers


You can purchase a nut cracker that will do the job. It has a loop that goes around the nut and a chisel point that as you turn with a wrench presses into the side of the nut until it cracks. Craftsman sold by Sears as well as other brands in many automotive stores sell these.

Todd Shell
Todd's Home Services
San Antonio, TX

Answered 8 years ago by Todd's Home Services


I am a bit confused - date on question says 2012 but came up in current new questions today, and I see Todd answered it, and he has not been present on this site for awhile.

Oh well - in case this is a current question - also not clear if this is a nut you can get a socket over or not, so if plumbing type nut on pipe or such (as category suggests) over-bolt socket type solution (#7) will not work.

For easy to remove (low friction or small diameter) nuts like on household plumbing or appliance, from least damaging (to nut) to most. Of course, loosen nut up with penetrating oil or heat if feasible and necessary, especially if corroded or jammed threads, which is likely if it has been rounded off:

1) rubber or nylon strap wrench will normally do the least damage

2) channel lock pliers (protect nut with doubled rag or friction type electrical tape if chromed and need to try to save it)

3) locking large vice grip pliers

For hard to remove, high-friction or corroded on nut (like on machinery/vehicle) - obviously more damaging than above, and likely to require nut replacement when off as nut will be unusable after removal:

4) file or grind new flat faces on it so it can take an adjustable or open end wrench

5) depending on accessibility and tools at hand, file or hacksaw or abrasive cutting wheel in dremel tool or die cutter, to cut only most of the way through nut (to protect threads on bolt/pipe), then when cut mostly through so highly weakened turn off with channel locks or carefully split rest of way through with chisel or nut splitter till it cracks off

6) locking or cam spanner wrench - looks like a large adjustable basin wrench with long lever arm or stilson or powergrip adjustable nut wrench or somewhat like a load binder for tightening truckers chains, cams a hinged wrap-around jaw around nut similar to strap wrench concept but rigid metal components, and locks tighter as arm is pulled down to turn - works sort of like a toothed slack-jaw Monkey or stilson wrench.

7) steel or carbide toothed aluminum pipe wrench - teeth in jaws will bite grooves into nut to hold while turning, if adjusted right (so nut is well down into jaws)

8) stripped nut removal socket wrench - works like a socket wrench but has tapered threaded wedge shape inside so it grips tighter and self-threads onto nut as it turns - usual type goes over bolt and turns with standard socket wrench long handle, there are ones that slip down over extended nuts and are turned (hex shaped) with adjustable or box wrench

9) nut cracker/splitter, like Todd suggested, but if nut is not on a solid bolt (says it is on tubing or pipe) can easily crush the pipe/tubing too

10) cold chisel and hammer to split it

11) gas cutting torch

12) dynamite

Answered 5 years ago by LCD

Related Questions

Terms Of Use
Privacy Policy