1 The installer no longer has to try to hold hanger, joist and nail with one hand and swing a hammer with the other! 2  JHA270 range features a location tab which allows easier alignment of the hanger.  The model number and size is stamped into the seat of the hanger for easy identification, even after installation.
first class(Adjective) Belonging to the best or top group in a system of classification. first class(Adjective) Of, or relating to the most luxurious and expensive class of accommodation on a train, ship, hotel, etc. first class(Adjective) Of, or relating to a class of mail to be delivered before second class.
First-class postage is a type of mail which indicates the level of service a package or letter is supposed to receive from a postal service. Most folks in the US think that all mail is sent first-class and that the label is a kind of misnomer. That's because most consumer-facing mail is sent this way.