They are broken. I had a pair of scissors complete and others started cutting as I installed them. See image. This damage occurred at a torque well below Shimano's recommended torque for the crank bolts on the bottom brackets. I see another user shearing off these bolts while riding, so I'm not the only one. Proper installation technique will shear or loosen these screws significantly. They are dangerous.
πͺ Strong and Versatile: National Hardware N222 406 Square Bolts for Secure Fastening
7 Review
π© 5-Pack of M8x60mm Stainless Steel External Hex Expansion Bolts by Yasorn
10 Review
Highly π Sought-After Fastener: Connector 014973445713
9 Review
POWERTEC 4 Inch 20 2 Inch QTB1005 T Slot: A Revolutionary, High-Quality Power Tool Accessory!
8 Review
191Pcs Nickel Plated Metal Eye Shape Screws - 9 Sizes, Self Tapping, Silver Color | ECKJ
15 Review
Xiaomi MiJia Electric Screwdriver Gun Cordless Screwdriver Black
20 Review
π© Included Fastener for Drywall - TOGGLER SNAPTOGGLE
10 Review
Multifunctional Assorted Screw Eyes Kit β Perfect For Hanging, Jewelry Making And Crafts β 105 Pcs
16 Review