Product Range

1/4’’ TO 1’’
10 TO 210 MM
1/2’’ TO 8’’
8.8, 9.8, 10.9, 12.9
5, 8, V, R, X
Hex , Hex Flange, Socket, 12 point (Bi Hex), Counter Sunk, Internal & External Hexalobular,
Round Head, Button Head & as per drawing.

Raw Material Logistics

OHT understands the importance of their customer’s lines running smoothly. In the fluctuating market of steel, it is imperative that OHT secures enough Raw Materials for their customers for a continuous and smooth supply of finished products. OHT maintains a monthly stock of different Raw Materials which exceeds its monthly manufacturing requirement.

Wire Processing

To achieve the required mechanical properties, OHT has an in-house facility of 3 Wire-Drawing Machines.

Cold Forging and Thread Rolling

OHT manufactures over 3000 different Fasteners using state of art Cold Forging and Thread Rolling Machinery which has an annual production capacity of 30,000MT. Its wide range of high-tensile fasteners includes Bolts, Screws, Studs, and Special Fasteners as per print. Special Fasteners are our forte and contribute to 70% of OHT’s total production.

Heat Treatment

We at OHT understand that achieving the specified metallurgical properties of a fastener is the heart of the manufacturing process. The Heat Treatment division is equipped with 6 state-of-the-art, fully automatic, Continuous Mesh Belt Hardening & Tempering programmable lines with controlled atmosphere for the complete heat treatment cycle. The furnace atmosphere is maintained by utilizing six Endothermic Gas Generators having online FCS (furnace control system) unit to control the over line CP values. An alternative Methanol + LPG auto feeding provision are also available. These furnaces are designed and periodically calibrated as per AMS2750D specifications and CQI guidelines which are dedicatedly followed.

Surface Coatings

Zinc Aluminium Flake Coating
OHT has one of the largest CQI12-compliant ZAFC production capacities in India.
Being official Licensees of the world-class coatings Geomet and Magni, it caters to several Indian and International customers.


Alkaline Zinc and Nickel Plating

Keeping in-line with the times, OHT has incorporated a brand new, fully automated Alkaline Zinc & Nickel plating plant with inline baking and passivation

TBP (Trivalent Blue)
TYP (Trivalent Yellow Iridescent)
TYP (Trivalent Golden)
TBL (Trivalent Black)
OG (Trivalent Olive Green)
OG (Trivalent Olive Green)

Final Inspection, Packing and Logistics

OHT’s stringent Quality Control, Visual Inspections & modern Optical Sorting Machines ensures that our customers receive zero defect products.

Visual Sorting
5 Optical Sorting Machines
Bonded Store
Boxing & Strapping
Shrink Wrapping