Class 12 - Holiday Home work for the week ( 22nd to 26th June 2020)
What is a STUD?
A stud is a cylindrical piece of metal having threads at both ends as shown in Fig 1 below.
Fig 1: Studs
A stud is a headless bolt. For connecting two parts, the metal end of the stud is screwed into the threaded hole of one part and the other end called as the nut end is passed inside the clearance hole in the other part. The neck of the stud where there are no threads remains within the hole.
Types of studs
1. Plain Stud
2. Stud with Square neck
3. Collar Stud
What is a machine screw?
A screw is a temporary fastener that holds two members together. A screw is a bolt that is threaded throughout its length up to its head. Generally it is screwed into a threaded hole. Machine screws are classified according to the shape of their heads.
Commonly used machine screws are as below:
1. Round Cup Head
2. Cheese Head
3. Counter Sunk Head (90 degree)
4. Grub
5. Socket Head
Fig 1: Round Cup Head
Fig 2: Cheese Head Screw
Fig 3: Socket Head Screw
What is a RIVET?
A rivet is a permanent fastener that holds two members together. A rivet is a small cylindrical piece of metal having a head, body and tail.
Fig 1: Rivet and its parts
Fig 2: Riveted Joints
Types of Rivets
A rivet is classified according to the shape of their heads.
1. Snap Head
2. Pan Head
3. Counter Sunk Head (60 degree)
4. Flat Head
A stud is a cylindrical piece of metal having threads at both ends as shown in Fig 1 below.
Fig 1: Studs
A stud is a headless bolt. For connecting two parts, the metal end of the stud is screwed into the threaded hole of one part and the other end called as the nut end is passed inside the clearance hole in the other part. The neck of the stud where there are no threads remains within the hole.
Types of studs
1. Plain Stud
2. Stud with Square neck
3. Collar Stud
What is a machine screw?
A screw is a temporary fastener that holds two members together. A screw is a bolt that is threaded throughout its length up to its head. Generally it is screwed into a threaded hole. Machine screws are classified according to the shape of their heads.
Commonly used machine screws are as below:
1. Round Cup Head
2. Cheese Head
3. Counter Sunk Head (90 degree)
4. Grub
5. Socket Head
Fig 1: Round Cup Head
Fig 2: Cheese Head Screw
Fig 3: Socket Head Screw
What is a RIVET?
A rivet is a permanent fastener that holds two members together. A rivet is a small cylindrical piece of metal having a head, body and tail.
Fig 1: Rivet and its parts
Fig 2: Riveted Joints
Types of Rivets
A rivet is classified according to the shape of their heads.
1. Snap Head
2. Pan Head
3. Counter Sunk Head (60 degree)
4. Flat Head
Exercises
1. Draw all the different types of studs
2. Draw all different types of screws
3. Draw all different types of rivets
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