Credit: 2 PDH Hours
Course Fee: $18.00
The strength and stability of any structure depend heavily on the fastenings that hold its parts together. One prime advantage of wood as a structural material is the ease with which wood structural parts can be joined together with a wide variety of fastenings-nails, spikes, screws, bolts, lag screws, drift pins, staples, and metal connectors of various types. For utmost rigidity, strength, and service, each type of fastening requires joint designs adapted to the strength properties of wood along and across the grain and to dimensional changes that may occur with changes in moisture content.
Review the quiz before studying the course.
Course Author: US Forest Services
This course comes with a multiple-choice quiz. You can view the quiz and take the quiz if you are logged in your account. You can take the quiz for this online PDH course as many times until passed. The passing grade is 70% and above. After you pass the quiz simply follow the page, to pay for the course and print your certificate instantly. A copy of the certificate and receipt for this course will always be in your account.
This online PDH course can also be used as a continuing education course for the following.