Natco Agency

Park Town, Chennai, Tamil Nadu

Carriage Bolt has a domed or countersunk head, and the shank is topped by a short square section under the head. The square section grips into the part being fixed (typically wood), preventing the bolt from turning when the nut is tightened. A rib neck carriage bolt has several longitudinal ribs instead of the square section, to grip into a metal part being fixed.

A Flanged bolt can be any of head styles with the addition of an integrated flange at the base of the head. This eliminates the need for a flat washer.

A Hexagonal head, designed to be driven by a wrench (spanner).

Roofing Bolt is a type of machine screw that has a round or flat head and is threaded to the head. They are usually made of low grade steel, have a slot or Philips drive, and are used to join sheet metal parts using a hex or square nut.

Structural bolts replaced rivets due to decreasing cost and increasing strength of structural bolts in the 20th century. Connections are formed with two types of joints: slip-critical connections and bearing connections.

A bolt with a looped head.

A J bolt is a J-shaped bolt which can be used in a variety of applications.These bolts can be made from several different metals, and subjected to various treatments, depending on how and where they will be utilized. In a J bolt, the threading runs along the flat arm of the J. One could think of a J bolt as half a U Bolts, since that is essentially what it is. The diameter of the bolt can be varied, as can the type of threading, and the angle and size of the hook at the base of the bolt. Manufacturers can also cater to specific requests in the case of larger orders. To attach something to a J bolt, threaded nuts and washers can be utilized as needed. One common use of J bolts is as cast-in-place anchor bolts.

We offer a wide assortment of foundation bolts that are extensively used in various industrial applications. Fabricated using high quality metal, these foundation bolts are known for high tensile strength & excellent durability. These foundation bolts that are being used in diverse industries can also be developed as per the customers' specifications to satisfactorily meet their exact requirements. These are fabricated with high grade steel and its alloys such as IS2062 Grade-A, En-8, En-19 material as per IS-1367 Class 8.8 / Class 10.9 or as per the requirement of the client.

The coating may be matt grey because the higher silicon content of the steel makes them more reactive towards the molten zinc.

Foundation bolts are intended for anchoring structural supports to concrete foundations. Such structural supports include building columns, column supports for highway signs, street lighting and traffic signals, steel bearing plates, and similar applications.

THESE ARE HOTDIP BOLTS & NUTS HALF THREADED & FULLY THREADED FROM DIA 12MM TO 16MM USED IN THE FOLLOWING TOWERS,

1. Four legged Angular Bolted Self Supporting Ground Based Towers (From 30mtrs to 100mtrs)
2. Four legged Angular Bolted Self Supporting Rooftop Based Towers (From 9mtrs to 27mtrs)
3. Three legged Tubular & Angular Bolted Self Supporting Ground Based Towers (From 30mtrs to 60mtrs)
4. Three legged Tubular & Angular Bolted Self Supporting Rooftop Based Towers(From 9mtrs to 27mtrs)
5. Four Legged Angular welded Guyed Ground Based Towers (From 12mtrs to 40mtrs)
6. UBR Poles (From 3mtrs to 9mtrs)
7. UBR Ground Based Towers (From 9mtrs to 27mtrs)

The structure for solar panels have to fastend twith the help of hot dip galvanized bolts and nuts.the sizes for the solar station vary from 8mm to 16mm dia.

WE PROVIDE CUSTOMISED U BOLT AS PER THE SPECIFICATION & DESIGN DRAWINGS OF OUR CLIENTS. OUR U BOLTS ARE IN ACCORDANCE WITH EXISTING STANDARDS AND NORMS OF THE TRANSMISSION LINE OF INDUSTRIES.

SIZES FROM 8MM TO 20MM GR 4.6, 6.8