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Aero HMS Locksafe DMM

Item Code: A367

Availability: Shipping Details


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Aero HMS Locksafe DMM: Excellent value, excellent construction HMS locking biner

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Aero HMS Locksafe DMM

Aero HMS Locksafe DMM: Excellent value, excellent construction HMS locking biner

Aero HMS Locksafe DMM Specs:

  • Anti snag Keylock nose
  • Deep gate bend for easy rope clipping
  • Very strong construction
  • Strength (Gate Closed): 25kN
  • Strength (Gate Open): 8kN
  • Strength (Minor Axis): 10kN
  • Gate Opening: 19mm
  • Weight: 91g

Aero HMS Locksafe DMM: It’s hot forged, a process that allows us a much greater degree of freedom in the design and manufacturing process.

Aero HMS Locksafe DMM: Is also a very strong biner which means greater resistance to wear and excellent heat dissipation.
Aero HMS Locksafe DMM: Extremely generous rope radius- 11.3mm

DMM Website


In stock items will ship within the next business day. Available item(s) is/are available to order. Most available items will ship within 9 business days, sometimes the process is faster and of course it will ship to you ASAP. There might be some exceptions, example: supplier is out of stock or manufacturing delays. If you have any doubt your item is in stock please call us at 303-984-4649.

For shipping rates and/or international shipping rates and policies, please click here.



If you placed an order at 123Mountain and you don't like it just send it back for a refund, applicable for the item not shipping costs*. Ship it back and as long as your item is in unused condition with original tags, boxes, etc.  Please follow the steps at Return Policy Page.

No returns on sale / promotional / discounted item(s).

* Even if the shipping was free we paid the carrier for the service provided and we will deduct $7.95 for Economy, $12.95 for Ground, etc.



Not stoked on your gear? Looking to return it? No problem, we have an Unlimited Return Policy as long as item(s) is/are in UNUSED CONDITION. We try to guarantee complete satisfaction with unlimited lifetime returns. If at any time - now, next month, in 30 years - you're not 100% satisfied, send your gear back for a refund. No questions asked. Check out Return Policy Page here. No returns on sale / promotional / discounted items, though.


We need your help to always make sure 123Mountain has the best prices! You may even benefit in the process. If you find an identical product at a lower price and in stock through another online site we will refund two times the difference.

Here's how it works:
•    Place the order on at our current price.
•    Email us within 24 hours that you are requesting a price match, including a link to the site where you saw the lower price.
•    We will adjust the price and take care of your refund.

For further information please go to 100% SATISFACTION page.


We offer three types of membership; Elite, Premium and Standard. Each membership group has fantastic advantages everything from store credit to an extra 10% OFF and FREE shipping.

Find out more which membership level that fits you the best, click here.


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