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DMM HB Brass Offset Nuts


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Brass Offsets

DMM Brass Offsets have long been recognized as the go-to choice for thin, hard-to-protect trad routes and clean aid lines. The tapered design increases security in flaring placements, and DMM uses soft brass to reduce the chance of fracturing rock sending you on a big ride.
  • Stoppers specialized for thin cracks on trad routes and aid lines
  • Brass construction conform better in cracks when fallen on
  • Offset design tapers at sides for versatile placements
  • Item #DMM0037

brass, steel
[0 ] 2.5 kN, [1 ] 4.5 kN, [2, 3 ] 6 kN, [4 ] 8 kN, [5 ] 7 kN, [6 ] 10 kN
Claimed Weight
[0,1] 0.14 oz, [2] 0.28 oz, [3] 0.32 oz, [4] 0.46 oz, [5] 0.56 oz, [6] 0.85 oz
Recommended Use
trad climbing
Manufacturer Warranty
1 year

Tech Specs

California Proposition 65


This product can expose you to chemicals including Lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

What do you think about this product?


>Rating: 5


I've had my full set of brassies for about 3 months now and have most used them as incremental protection on granite when stuff gets thin. These guys bite more than the aluminum standard size DMM offsets. I lost one last week in Idaho on elephants perch and was heartbroken. Great thing Backcountry provides individual sizes.

>Rating: 5

DMM Offset Nuts for President

I've put it through the wringer

When I was setting up my rack, multiple climbers told me to consider these nuts. On pure faith I listened, and I'm so happy I did. Overall I wasn't stoked on the price of these nuts, but now that I have them I wouldn't have it any other way. Their design fits perfectly into flares where other nuts can't fit, and I always find myself reaching for these nuts first.

>Rating: 5

17 years later and no need 4 replacement

I've put it through the wringer

I've been climbing on offsets since the HB days (the original patent that DMM now sells). I still have two original sets fo HB Brass and the original offset nuts that differ only in their lack of anodization. They place as well in normal constrictions as Wallnuts, Rocks or Stoppers, but in uneven or flaring (inwards or outwards) placements, there is simply nothing better. They also seem to be the Hardiest of my gear given that after almost two decades the original sets are still perfectly fine and trustworthy.

>Rating: 5

Brassy Offsets are killer!

I've put it through the wringer

These are the coolest little stoppers ever! They really excel in flares and pin scars, but you can find placements for the 4-6 on any route! The softness of brass and the offset shape make placing these a dream. They are very light and crazy strong. I really love using the DMM Offset Series in general, both brass and aluminum work so dang good, I never leave these behind! I free climb with the aluminum and the larger size brassy mainly, but just started aid climbing with the smaller sizes and they do an awesome job on thin seams were not much else would work. Due to being brass and soldered they do kinda get misshaped fast from the heavy abuse of aiding. But very sick nuts! The brass offsets are a must have in my book!

>Rating: 5

great shape

I've put it through the wringer

those guys are great for small tiny placements. Because they're soft and nicely offset shaped, they can be placed very easily and they feel very secure.

>Rating: 5

The best brass offset nuts

Another must have for your rack after you have the DMM Offset Set #7-11.

>Rating: 5

Ready, Set, Offset!

These nuts turn otherwise R or PG-13 rated routes into well protected climbing for me regularly on granite, basalt and sandstone.

>Rating: 5


Best nuts out there!!! I bought with the intention of using only in tricky aid placements, however, these guys have become a standard staple on my every day rack. Buy a set and go climb the Green A with just these guys!!

>Rating: 5

Glorious Return

I once was full of woe for HB stopped making brass offsets. I am now full of joy that DMM picked up the torch and has again brought us into the light. These are the go to piece for thin pin scars and funky placements on dicey clean aid. These were MAGIC on Desert Shield in Zion a few weeks ago. Simply stated the route does not go easily without them.

>Rating: 5

Essential Pin scar pro

If you find yourself climbing in the land of flared or pin scarred cracks, there is no other option for bomber pro! A set of these on your rack will protect you where nothing else will, so if its Zion, yosemite, or wherever...add these to your nuts!

What sizes do you recommend? I'd try to add the sizes 2-4 to my 0,5-0,75 microwallnuts. What about the sizes 0 and 1?

Pit, Sizes 0 and 1 are for direct aid only and are only rated to 2.5 and 4.5 kN, respectively. This micro sizes are valuable in particular situations on aid and may allow you to go hammerless they are very specific and you may find them unused for the majority of your climbing. If you're planning on a more difficult aid line in the Valley or Zion I'd recommend them, otherwise it may better to invest those funds into 1-2 additional larger sizes of the Brassies.

That said, I belayed Chris Burton as he whipped approximately 20' onto a #1 in Red Rock sandstone that held brilliantly and outside of a bolt which wasn't there was the only available pro.


[0 ] 2.5 kN, [1 ] 4.5 kN, [2, 3 ] 6 kN, [4 ] 8 kN, [5 ] 7 kN, [6 ] 10 kN From the list it shows that the smaller size #4 is rated to 8kN and the #5 is rated to 7kN. This must be a typo...

Yes Matthew, that is a typo...