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Spiral Screw Forming Development Formula

Feb 12, 2008nbsp018332The length of the helix spiral is the hypotenuse of a triangle whose other sides are the circumference of the round part and the lead distance formed by the width of the spiral. Therefore, the formula would be helix length square root of PI x diameter2 width length2. square root of 3.14 x 5-3quot2 6quot2

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