Skip to main content

Bolt 🔩

A bolt is a term used for a threaded fastener designed to be used in conjunction with a screw.
A screw is a term used for a threaded fastener designed to mate with a pre-formed internal thread or forming its own thread.

Three main parts of bolt:

  1. Head
  2. Shank
  3. Thread
The size of a bolt is a combination of the thread diameter and the length. The length is normally taken from the underside of the head to the end of the thread.

For example, a bolt designated as M12 x 100 indicates that the bolt is a metric thread of 12mm diameter and of 100 mm length.

A full designation of the bolt usually includes the head type and the standard that the bolt is made to. For example, Hexagon head bolt DIN 6914 -M12 x 100 indicates that a standard hexagon head form is to be used, DIN 6914 refers to the standard that the bolt is to be made to (the German standard on high strength hexagon head bolts) and M12 x 100 indicates that the bolt is a metric thread of 12
mm diameter and of 100 mm length.

Labels:

Comments

  1. Dc Engineering Products Pvt.ltd5 January 2023 at 14:43

    It is such a nice and helpful article, and I believe that it will also be helpful for new users. Additionally, it contains such accurate information about  UNS N02200 Nickel Stud.

    ReplyDelete
  2. Vision Alloys11 January 2023 at 12:55

    Thanks for sharing such a wonderful article, which helpful for us . We also offer high quality o Nickel 200 Fastener. If are you looking for best quality. Please checkout over here.

    ReplyDelete
  3. Yash Shah11 January 2023 at 13:35

    I read your article, it’s very useful and informative for us. We are also manufacturer and supplier of Stainless Steel 304 Seamless Pipe and Tube in best quality at best price.

    ReplyDelete
  4. Kaushal Shah11 January 2023 at 13:53

    Thanks for sharing this informative article, which provide better knowledge. We manufacture high quality  Duplex Steel S32205 Pipe. We offer at reasonable price.

    ReplyDelete
  5. Himanshu Jain12 January 2023 at 10:52

    Thanks for sharing this valuable article. It is very important for us. We also offer 304L Stainless Steel Shim manufacture in high quality at the best price.

    ReplyDelete

Post a Comment

Popular posts from this blog

Difference Between A, B & C-Class Divisions?

IMO Symbol A Class Division  IMO Symbol B Class Division  SOLAS has tables for structural fire protection requirement of bulkheads and decks. The requirements depend on the spaces in question and are different for passenger ships and cargo ships. The Administration has required a test of a prototype bulkhead or deck in accordance with the Fire Test Procedures Code to ensure that it meets the above requirements for integrity and temperature rise. Types of Divisions: "A" Class "B" Class "C" Class "A" Class: "A" class divisions are those divisions formed by bulkheads and decks which comply with the following criteria: They are constructed of steel or equivalent material They are suitably stiffened They are constructed as to be capable of preventing the passage of smoke and flame to the end of the one-hour standard fire test. they are insulated with approved non-combustible materials such that the average tempera
15 comments
Read more

Why do we blow through engine before starting ?

The engine is blown through on air before starting it : a) To Blow out through indicator cock any residual exhaust gas or     other products of combustion trapped inside the cylinder after     shutting the engine. b) To check if any jacket cooling water from cylinder head or     turbocharger or any other source, has leaked while the engine          was shut and collected on top of piston. If while blowing                  through, water comes out of indicator cock or relief valve, we          need to investigate and rectify the fault before starting the                engine. It is imperative that the engine is blown through before        starting. There have been cases where the generator engine has        been started from control room without bothering to blow     through first, and water collected on top of piston has resulted in      a bent connecting rod and broken piston.( Reason – water can          not be compressed )
11 comments
Read more

Load Line & Why it is Important

Merchant ships have a marking on their hull know as the Plimsoll line or the Plimsoll mark, which indicates the limit until which ships can be loaded with enough cargo, internationally, the Plimsoll line on a ship is officially referred to as the international load line. Every type of ship has a different level of floating and the Plimsoll line on a ship generally varies from one vessel to another.  All vessels of 24 meters and more are required to have this Load line marking at the centre position of the length of summer load water line. There are two types of Load line markings:- Standard Load Line marking – This is applicable to all types of vessels. Timber Load Line Markings – This is applicable to vessels carrying timber cargo. These marks shall be punched on the surface of the hull making it visible even if the ship side paint fades out. The marks shall again be painted with white or yellow colour on a dark background/black on a light background.  The comp
7 comments
Read more