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Technical Data
      - Ampacities of Copper Wire
      - Conversion Factor Chart
      - Units Converters
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      - Decimal Equivalents
      - Density of Various Materials
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      - Galvanic Corrosion Chart
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      - Sheet Metal Gauges
      - Bolt and Screw Torque Data
      - Wind Chill Chart
      - Screw Heads
            - Pan Head
            - Pan Head Torx
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            - Hex & Hex Washer Head
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            - Flat Head 82°
            - Flat Head 100°
            - Round Head