HEX HEAD DESIGN PROCEDURE

Directions: Use the following procedures to create top and side views of hex head fasteners.

• STEP 1 - Layout the diameter (distance across the flats) of the hex head on a pair of center lines and add a circumscribed hexagon to match the diameter.

• STEP 2 - Layout the thickness or height of the head.

• STEP 3 - Project the corners of the hexagon to the top of the head (blue phantom lines).

• STEP 4 - Add the corners to the head thickness (solid blue lines).

• STEP 5 - Project the head chamfer from the hexagon diameter to the head thickness (green phantom lines) and then add the head chamfer to both edges (solid green lines).

• STEP 6 - Add the chamfer thickness ( solid cyan line).

• STEP 7 - Trim the corners to the chamfer thickness.

• STEP 8 - Project the tangent point of the hexagon and the hexagon diameter to the head thickness (light blue phantom line).

• STEP 9 - Delete the chamfer thickness line (cyan line).

• STEP 10 - Delete the chamfer thickness line.

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