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Forging and Mounting Bolts at Our Factory Vasai, Mumbai




DM Special Steel Ltd has been manufacturing Bolts since 2004 & shipped to more than 60 Countries Like Argentina, Germany, Mexico ,Vietnam, Indonesia, USA , Saudi Arabia, UAE, Egypt , Turkey, Venezuela, Italy, Singapore, Malaysia, Australia, New Zealand, Canada & many more.


The distinction between a bolt and a screw is usually unclear and misunderstood. There are several practical differences, but most have some degree of overlap between bolts and screws.


Bolted joint in vertical sectionBolts are often used to make a bolted joint. This is a combination of the nut applying an axial clamping force and also the shank of the bolt acting as a dowel, pinning the joint against sideways shear forces. For this reason, many bolts have a plain unthreaded shank as this makes for a better, stronger dowel. The presence of the unthreaded shank has often been given as characteristic of bolts vs. screws, but this is incidental to its use, rather than defining.



We produce premium quality Bolts from Nickel Alloys ,Stainless Steels,Super Alloys, Duplex steels & Super Duplex,Copper & Copper Alloys,with ASTM/ASME/DIN Standards & Specifications.We produce different types of hot forged cold formed bolts in almost all shapes & sizes.We also provide passivation,quality coating further processing as per client's requirement.Our Manufacturing Size ranges from M10 to M100 with varied length.


Orders at DM Special Steel Ltd are guaranteed fast delivery of the Bolts in the country. The main reason being we have an excellent warehousing and storage facilities for both finished and semi finished goods.They are made ready as per the urgent requirements of the customers. The Bolts are manufactured to sustain very high pressure and product warranty.In 2015 we have stocked more than 188 tons of Bolts in all sizes, to cater to immediate delivery and urgent needs of the clients. For small requirements we can dispatch the Bolts immediately against the purchase order.


Bolt Type


Hex Head Bolt
Socket Cap Screw
Carriage Bolt
Anchor Bolt
Eye Bolt
Flange Bolt
Elevator Bolt
Lag Bolt
Draw Bolt
Plow Bolt
Stove Bolt
Tap Bolt
Machine Bolt
Hanger Bolt
U Bolt
Grub Screw
Set Screw
Shoulder Bolt
Step Bolt
J Bolt



Surface Coatings




Ready Stock




General Queries While Buying Bolts


  • High rejection rate
  • No control on quality and testing
  • Non availability
  • Late deliveries
  • Poor packaging/ Unprofessional Packing
  • Poor after sales service
  • Supply of wrong grades
  • Material inconsistent with ASTM Standards
  • Very hard material for use
  • Poor surface finish
  • No Mill test report
  • Dubious Practices
  • Lack of knowledge
  • Product fails under high pressure
  • High pricing of the goods due to supplier commission



Why Choose DM Special Steel Ltd. While Buying Bolts?


  • High pressure sustainability
  • Impeccable surface finish
  • Product replacement warranty
  • After sales support and service
  • World class buying experience
  • Very quick delivery
  • Mill test report/ Digital Mill test report in accordance with EN10204 NACE 3.1, NACE 3.2
  • 3rd Party inspection
  • Government and Private Laboratory Testing
  • Test certificate from ISO 17025 Standards Laboratory
  • Same day shipping of the goods
  • Highest stock in the country
  • Stringent Quality Testing and Control




For More Information About Bolts please call or send an email to