Review on 💪 Premium Quality 20Pcs 20mm M3 Black Aluminum Standoff Column Spacer for RC Multirotors - Ultimate Durability & Stability! by Darnell Golden

Have been using them for a while, nothing has ever bent or broken even after a couple of horrible falls with my 450g (550g with GoPro) 5 inch model. 10 post weight has increased to 6.8g, my 1/10 gram weighs about 0.68g. I would recommend titanium/aluminum bolts for 3" construction if you can find them, they weigh about half the weight of steel. I use m3x6mm steel and two props weigh 0.7g. So you can save 1.5g by using 8 non-steel props, which doesn't sound like much, but when combined with non-steel motor propellers it can easily reach 4g. This is important for builds with auw between 100g and 200 g