Answer :

Dimensions and Calculations:

- Total Bolt Length: 30 mm (scaled to 60 mm)

- Thread Length: 30 mm (scaled to 60 mm)

- Hex Head Height: [tex]\(0.7 \times 10 \text{ mm} = 7 \text{ mm}\) (scaled to 14 mm)[/tex]

- Across Flats (Hex Head): 17 mm (scaled to 34 mm)

Views in First-Angle Orthographic Projection (2:1 Scale):

- Front View: Shows the side profile of the bolt with a hexagonal head (60 mm length, 14 mm head height, 34 mm across flats).

- Top View: Displays the hexagonal shape of the head (34 mm across flats).

Projection Symbol:

- Included above the views to indicate First-Angle Projection.

To create a detailed drawing of an M10 hexagonal bolt in a 2:1 scale using First-Angle Orthographic Projection, do the following:

1. Understanding the Dimensions of the M10 Bolt:

- The nominal diameter (D) of the M10 bolt is 10 mm.

- The total length of the bolt is 30 mm.

- The length of the thread is 30 mm, implying the bolt is fully threaded.

- The across flats (A/F) dimension for an M10 bolt is typically 17 mm (i.e., the distance across the flats of the hexagonal head).

- The height of the bolt head (H) can be calculated using the formula:

[tex]\[ H = 0.7 \times D \][/tex]

where D is the nominal diameter.

2. Calculating the Height of the Bolt Head:

[tex]\[ H = 0.7 \times 10 \text{ mm} = 7 \text{ mm} \][/tex]

3. Drawing Views in First-Angle Orthographic Projection:

- Front View: Shows the side profile of the bolt.

- Top View: Shows the hexagonal head.

- Side View: This may not be necessary for a bolt but would show another side profile identical to the front view.

Drawing Steps:

1. Front View:

- Draw a rectangle representing the bolt length (30 mm).

- Indicate the threaded portion as 30 mm along the length.

- Draw the hexagonal head above the threaded portion, 7 mm in height and 17 mm across flats.

2. Top View:

- Draw a hexagon with 17 mm across flats.

3. Side View:

- Draw a rectangle similar to the front view to represent the bolt’s length and the hexagonal head dimensions.

4. Projection Symbol:

- Add the First-Angle Orthographic Projection symbol to the drawing.

Drawing in Scale 2:1:

- All dimensions will be doubled.

Example Sketch: An example sketch is attached.

Detailed drawing plan to help visualize:

Front View (Scale 2:1):

- Total length: [tex]\(30 \text{ mm} \times 2 = 60 \text{ mm}\)[/tex]

- Thread length: [tex]\(30 \text{ mm} \times 2 = 60 \text{ mm}\)[/tex]

- Head height: [tex]\(7 \text{ mm} \times 2 = 14 \text{ mm}\)[/tex]

- Across flats (hex head): [tex]\(17 \text{ mm} \times 2 = 34 \text{ mm}\)[/tex]

Top View (Scale 2:1):

- Across flats of hex head: [tex]\(17 \text{ mm} \times 2 = 34 \text{ mm}\)[/tex]

The drawn sketch is attached.

The detailed drawing of the M10 hexagonal bolt in a 2:1 scale using First-Angle Orthographic Projection:

Front View (Scaled 2:1)

- Total Length: 60 mm

- Thread Length: 60 mm

- Head Height: 14 mm

- Across Flats (Hex Head): 34 mm

Top View (Scaled 2:1)

- Across Flats of Hex Head: 34 mm

First-Angle Projection Symbol

- Located above the views for clear identification.

This drawing provides a clear representation of the bolt with all the necessary views and dimensions at the specified scale.

Complete question:

Draw according to Scale 2:1 all the views of Hexagonal M 10 bolt in First-Angle Orthographic Projection.

- The total length of the bolt is 30 mm

- The length of the thread is 30 mm

- Show the calculations for the height of the bolt head

- Add the correct projection symbol