Company Profile

Company was founded in 1982 with the prime goal of manufacturing quality fasteners in ASTM standard. It is the fruit of the tireless efforts of its founder and is run by a group of dedicated technical professionals who have lots of potential knowledge and experience in fastener manufacturing line. We achieve concrete and rewarding results in terms of superior quality through improved utilization of our resources and wide range of experience in production and control.

Our main customers are refineries, fertilizer projects, petrochemical projects, nuclear power projects, pressure vessel manufacturers, valve manufacturers, manufacturers of heat exchangers and allied industries like sugar, cement etc. We manufacture as per our customer’s required specifications and under third party inspection of their choice.

We manufacture fasteners in ASTM, DIN, and BS standards. We are fully equipped with all types of machines, heat treatment facilities, tools , instruments, testing machines, technical know how, and manpower for the manufacturing of fasteners. We have elegant quality control procedures.

We carry out orders under third party inspection agencies like, EIL, LRA ,BVIS , PDIL, CEIL, DNV, NPC, TICB, FEDO, TEIL, KPG, UIL, TCS & Bax Counsel. We also have approval from Technical Development Committee for Fasteners.

Our fasteners are used by Larsen & Toubro, HPCL, BPCL, CPCL, IOCL, RCF, GSFC, GAIL, NRL, Godrej, Virgo, MRPL, Thermax, Sulzer and many other pressure vessel manufactures

Main products are fully threaded & half threaded stud, hex bolt, screws, tie rods & hex nuts.

Our products range from sizes M10 to M64 in metric series & 1/2 inch to 3 inch in inch series and length as per requirement

We manufacture studs, bolts, screws as per SA193 GrB7, B7M, B16, B6X, B6, B8, B8M , SA320 L7 & SB 164 (Monel) & nuts as per SA194 Gr. 2H, 2HM, Gr. 7, Gr. 7M, Gr. 6, Gr. 8, Gr. 8M & SB 164(Monel)

Our products can be supplied with coatings like blackodised, phosphated, zinc plated, cadmium plated, nickel plated and PTFE coated.

Our fasteners have been widely used in high pressure & high temperature, corrosive & high temperature, and also in high pressure & low temperature applications. Our product brand marking is “HE”.

When your decision is quality, your choice is “Hardwin”.

Product Categories

  • Full / Half Threaded Studs
  • Bolts (Square and Hex Head)
  • Tie Bolts
  • Foundation Bolts


Specification / Grades
Sizes / Dimensions