#FASTENERS
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What is fastening? Types of fastening? Use of each type?
- A fastener is a hardware device that mechanically joins or affixes two or more objects together.
- Temporary and Permanent. Permanent is used when it has to be joint permanently without any scope of disconnecting two components.
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What are two basic types of threads? Where each type is used?
- External and Internal. External on bolts , studs etc and internal on nuts , components etc.
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Define the terms : fundamental triangles , truncation , depth of thread , pitch , lead , slope, flank , thread angle , crest ,root , and axis of thread.