Honey bee mating is one of the most dramatic examples of sexual suicide in the insect world. Honey bee sex occurs in mid-air, when the queen flies out in search of mates. Drones compete for the chance to mate with their queen, swarming around her as she flies.
What is Carat Total Weight And Why Is It Used? The abbreviations âCTWâ, âCWTâ, âTWâ and âTDWâ all mean the same thing. Carat total weight or total diamond weight represents the weight summation of all the diamonds on that piece of jewelry. When you come across jewelry using CTW in their description, be sure that you check the sizes of diamonds used. I will explain why in a moment.
Bolts with a hexagonal head with threads for use with a nut or tapped hole. Abbreviated HHMB or HXBT: Carriage Bolts Bolts with a smooth rounded head that has a small square section underneath. Lag Bolts Bolts with a wood thread and pointed tip. Abbreviated Lag: Flange Bolts Flange bolts have a flange on the bottom of the head that distributes the load like a washer. Socket Screws Socket screws, also known as Allen head are fastened with a hex Allen wrench. Eye Bolts A bolt with a circular ring on the head end. Used for attaching rope or chain. Eye Lags Similar to an eye bolt but with wood threads instead of machine thread.