Collecting every piece of gear takes a little time.
We think it's worth the wait.

Nice choice!
Give us a moment to collect those options for you.

Black Diamond Offset Micro Stopper 5
  • Black Diamond Offset Micro Stopper 5
  • Black Diamond Offset Micro Stopper

Offset Micro Stopper 5

Black Diamond


no ratings


From aid pitches to hard, modern trad routes, Black Diamond Offset Micro Stoppers provide essential protection in pin scars, flaring cracks and awkward, misshaped placements. The copper/iron construction provides an optimized amount of bite and holding power in any rock type. The Offset Micro's unique construction relies on a head piece forged onto the cable for increased cable durability.

• Copper/iron mix in an offset design provides an excellent combination of bite and strength
• Patented swage is strong, flexible, and less prone to fraying

Retail price

US$ 15.95

When you click a link below and then checkout online, no matter what you buy (climbing gear or not), we get a small commission that helps us keep this site up-to-date. Thanks!

Weight (grams / ounces) 15 g / 0.53 oz
Size 5 micro nut (full strength)
Colors as a Nut Set Single
Strength (kilonewtons) 6 kN
Color Gray
Offset Yes, offset for irregular cracks
Range (inches / millimeters) ­
Material(s) Main Material: Copper/Iron
Certification CE, UIAA
Offset Micro Stopper

No reviews yet.

Splitter Choss Gear Review no rating given just a review

From granite cracks, to basalt and sandstone seams, they tend to work where nothing else will. The smallest sizes are recommended for aid climbing only, but I like to think of them as my “it’s OK, just put them in and keep climbing till you find something better” pieces. Also, the folks who frequent the big walls of Zion and their copious flaring pin scars will likely find them an indispensable part of their rack.

Rock and Ice Gear Review rating 5/5

These tiny nuts are a compound of copper and iron machined to offset wedges and swaged with a patented technology that Black Diamond claims is strong, flexible and not prone to fraying. These are the next-generation RP. After a few trips up The Health Issue, a new granite 5.11 close to the office, I was impressed by the nuts' durability. Alloys usually dent and scratch pretty quickly, but the Micro Stoppers held up to some yanking, though (thankfully) no falls.
I really like the shape of the offset, which BD touts as optimized for pin scars. I found two natural seams on the route where the offset shape fit when a regular tapered steel nut didn't.

The UIAA equipment standard provides a baseline for equipment performance in a test lab under controlled conditions on new equipment. Although these test conditions are relevant to the conditions encountered climbing, conditions encountered at the crags and the condition of the equipment are equally important. This recommendation from the UIAA member federation The British Mountaineering Council (BMC) provides vital equipment information that is NOT explicitly addressed in the standard, particularly failure modes of the equipment and recommendations for the use, inspection, maintenance, and retirement of equipment.