An Introduction to the Bolt head types and Parts of Bolt

Bolts are an essential industrial fastener used to fasten and secure objects with the help of industrial nuts. Bolts are generally threaded fasteners that always use with industrial nuts. Their primary function is to attach aligned unthreaded holes by being placed through the aligned holes and secured with the bolt’s nut.

A bolt is mainly comprised of the following components: 

Bolt Shaft: The shaft is a cylindrical portion that bears the shear forces acting on the bolt and secures the radial movements of the parts.

 Parts of a Bolt: 

  • Head: It is that portion of a bolt from where a spanner or wrench can hold it (to make it tight or loose).
  • Shank: The body of the bolt is the unthreaded part of a bolt placed under the head. Its length is measured from the head to the start of the transition to the threads. The shank provides a precise and smooth connection when installed in a bolt-hole. Pressure is more disrupted in this portion than in the threaded portion.  

The fastener portion may produce or be exposed to vibration, increasing the chance of the bolt loosening. If a bolt has no shank (i.e., the bolt shaft entirely comprises of threading), the vibration may push back out of the fastened portions.

  • Thread: The thread is the continuous helical ridge made outside the bolt shaft. This part accommodates the nut and allows the bolt to be pushed in or out of the parts. The bolt’s thread mates with the internal threads of the industrial nut to create a bolted joint. All bolts must have a threaded portion, but most bolts have partially threaded shafts.
  • Grip length: It is the part of a bolt that accommodates the parts that are to be assembled. The grip length should be equal to the merged thickness of connected parts.
  • Nominal length: It is the sum of the grip length and the thread length.

Bolt Head Types:

The head of a bolt is responsible for bearing the axial torque, which holds the materials being fastened. A wrench or a driver holds and applies enough torque on the bolt head to tighten or loosen the bolt. Bolt's heads come in a wide variety of profiles and types; some of them are:

· ·     Hex bolt heads have a hexagonal, six-sided head that various tools can easily and quickly grip (e.g., wrenches).

·        Countersunk bolt heads have a conical profile with a flat/plain top. They generally have a recessed slot to allow screwdrivers or hex socket tools to apply torque and drive the bolt axially.

·         Dome-type bolt heads have a rounded and smooth profile. However, they are challenging to wrench externally.

We are an Exporter of all kinds of Standard and Custom Fasteners. For more info Contact us at: info@dicfasteners.com. The company has engaged a separate Quality Assurance team and qualified workforce to ensure standardized product delivery to the client.

Location: India

Comments

Post a Comment

Popular posts from this blog

Shoulder Bolts | Shoulder Bolts Exporters | DIC Fasteners

Image
The Shoulder Bolts are hex socket drive head bolt fasteners with long non-threaded shank/shoulder between the head and the threaded end. This shoulder diameter is larger than the thread diameter. The main purpose of this non-threaded shoulder is to allow rotation of the attached parts of a mechanical assembly, engines and pulleys, etc. stripper bolts, hex socket shoulder bolts are another alias of hex head bolts. We can supply high-quality Shoulder Bolts Fasteners. Technical Specification :  Length: 3/8 to 8″  Materials: High Tensile, Carbon Steel, Stainless Steel, Inconel Fasteners, Incoloy Fasteners, Hastelloy Fasteners, Monel Fasteners, Silicon Bronze, Phospher Bronze, Aluminium Bronze, Nickel, Brass, Copper, etc. For more info visit: www.dicfasteners.com
Read more

An Overview of Hex Slotted Nuts

Image
We are a Supplier of Hex Slotted Nuts , in various countries. These are used in applications where vibration or torque might unfasten the assembly. Hex Slotted Nuts are similar to castle nuts but mainly have a lower profile than a castle nut of the same size. These are also preferred as castle nuts due to their lower profiles. Slotted Hex Nuts except the slots are cut into cylindrical portions that are equal in length to the slot depth and slightly smaller in diameter than the hex width. Castle nuts are the same dimensionally but have more curved slots cut in the top. If you are looking for reliable suppliers of hex slotted nuts, we are ready to serve your all kinds of needs. We have hex slotted nuts in custom as well as non-custom sizes. DIC Slotted Nuts are available in a range of strength grade property classes, both in heat-treated and non-heat treated conditions. These are also used to secure a safety wire or cotter pin to a fastener with a drilled hole.  Maintenance Check
Read more

High – Quality Steel Nuts

Image
  What are High-Quality Steel Nuts?   A high-strength nut is made of high-strength steel, or nuts that require a relatively large force to be locked can be known as high-strength nuts. Many high-strength nuts are used in connecting bridges and rail or some high-pressure and ultra-high-pressure equipment.   Is the High-Quality Steel Nuts safe for equipment?   The fracture mode of High-Quality Steel Nuts is a generally brittle fracture. Basically, to ensure the container's sealing, we require a large pre-stress when installing the high-pressure equipment.  Using high-strength steel nuts Nowadays, many power generation equipment and vehicles such as cars, trains, and airplanes are undergoing rapid development.   Therefore, locking components such as our industrial nuts also need to follow the trend and develop rapidly to keep up with the pace of development.   High-Strength Bolts are mainly used to connect some essential mechanical equipment, especially the repeated disassembly and
Read more