STUDY GUIDE: HARDWARE & FASTENERS

1 North American HARDWARE and Paint AssociationSTUDY GUIDE: HARDWARE & FASTENERSL earning Objectives: The features and benefi ts of the products you sell. How to answer your customers product-related questions. How to help your customer choose the right products. How to increase transaction sizes by learning more about add-on sales and upselling Knowledge:Chapter 1: FastenersModule 1: ScrewsSheet Metal Screw This screw fastens thin metal to thin metal. It is threaded its entire length. Can have fl at, oval, round or binding heads. Typical lengths range from 1/8 to 2 . Starting holes are either drilled or punched and should be slightly smaller than the screw Screw Intended to be screwed into pre-threaded holes in metal.

A: Threads per inch, or TPI, is a measurement used to count the number of threads along the length of a standard fastener. Pitch measures the thread count on a metric fastener. Taking it to the Floor: Self-Tapping Screw • Often used for attaching gutters, window frames, electrical fi xtures or any material typically requiring a starter hole.

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  Measurement, Hole

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