Drawing of bolt and nut.

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Presentation transcript:

Drawing of bolt and nut

BOLT : Terminology Bolt is a threaded cylinder with a head. Thread length Length Width across flat Head thickness Hexagonal head bolt and nut

Types of Bolts

The standard proportions for nuts and bolt heads may be obtained from the standard tables published by B.I.S. Approximate standard dimensions D= the nominal diameter of the bolt Height or thickness of the nut: T=D Width across flats, W=1.5D + 3 mm Angle of chamfer=300 Radius of the chamfer, R= 1.4D

Approximate dimensions of a washer Diameter of washer= 2D + 3 mm Thickness = 0.12 D Angle of chamfer= 300

BOLT : Drawing steps Draw an end view of the head Draw a bolt head body of a bolt 30o Draw bolt axis Major f B/2 B/2 H Length B Thread Length Starting position

NUT : Drawing steps Dash lines represent a threaded hole are Draw an end view of the nut B/2 B/2 H B Dash lines represent a threaded hole are omitted for clarity.

BOLT : Application 2. Insert a washer. 3. Screw a nut. 1. Insert a bolt into a clearance hole

Bolts are used to connect two pieces that are not too thick. Two clearance holes are drilled on both pieces in order to pass through the bolt, then a nut and a washer are used with it to connect the two pieces together.

Thank you