are cotter pins. Nothing more to say except that you get a lot - many you probably won't use as they're too big/small for your application, but when you need them, you need them.
π οΈ Hilitchi Beveled Insertion Straight Furniture Pins: Effortless Assembly and Sturdy Support
9 Review
Fluted Beveled Hardwood π© Fasteners and Pins with Wooden Material
8 Review
Enhanced Performance with POWERTEC Drilling Cobalt Collar 8 Inch
8 Review
π© Copper Tacks with Rubber Fasteners by BronaGrand
8 Review
POWERTEC 4 Inch 20 2 Inch QTB1005 T Slot: A Revolutionary, High-Quality Power Tool Accessory!
8 Review
Highly π Sought-After Fastener: Connector 014973445713
9 Review
π Carriage Prime Line Products GD52103
6 Review
πͺ Strong and Versatile: National Hardware N222 406 Square Bolts for Secure Fastening
7 Review