IBR Approved Nuts, Bolts, Screws, and Washers 

Mcneil Instruments is a leading IBR Approved Nuts Manufacturer, Supplier, and Exporter, IBR Approved Bolts Manufacturer, Supplier, and Exporter, IBR Approved Screws Manufacturer, Supplier, and Exporter, and IBR Approved Washers Manufacturer, Supplier, and Exporter providing high-quality fastening solutions. Our products conform to Indian Boiler Regulations (IBR), ensuring superior performance in high-pressure environments such as boilers, pressure vessels, and industrial piping systems. With a commitment to precision and durability, we offer a wide range of customized IBR-approved fasteners that meet the strictest industrial standards.

What are IBR Approved Nuts, Bolts, Screws, and Washers?

  1. IBR Approved Nuts: IBR Approved Nuts are specialized fasteners designed to comply with Indian Boiler Regulations (IBR). These nuts are used in high-pressure and high-temperature applications to ensure safety and durability in boiler systems and other critical industrial operations.
  2. IBR Approved Bolts: IBR Approved Bolts are threaded fasteners that meet IBR standards, ensuring reliable performance under extreme conditions. They are commonly used in pressure vessels, steam boilers, and pipelines for secure and durable fastening.
  3. IBR Approved Screws: IBR Approved Screws are precision-engineered fasteners conforming to IBR guidelines, ensuring safe and secure assembly. They are used in various applications requiring strong joints, including boiler parts and industrial machinery.
  4. IBR Approved Washers: IBR Approved Washers are essential components that distribute load and prevent surface damage. Manufactured according to IBR specifications, they are used in high-pressure environments to enhance the reliability of fastened joints.

Types of IBR Approved Bolts

  • IBR Approved Bolts

Type of BoltDescriptionApplications/Features
Hex BoltsBolts with a six-sided head.Used in industrial and construction applications.
Elevator BoltsFlat-headed bolts for elevators.Ideal for securing conveyor belts and elevators.
Eye BoltsBolts with a circular loop at one end.Used for lifting, securing, and anchoring loads.
Hanger BoltsDual-threaded bolts for wood and metal.Suitable for hanging fixtures and heavy objects.
Heavy Hex BoltLarger and stronger hex bolts.Ideal for high-pressure systems and heavy loads.
Hex Flange BoltBolts with an integrated washer-like flange.Distributes pressure and reduces surface damage.
Hollow Allen BoltHollow bolts with an Allen socket head.Used for applications needing reduced weight.
Hollow Hex BoltHollow bolts with a hexagonal head.Suitable for applications requiring light-weight fasteners.
J BoltJ-shaped bolts used for anchoring.Ideal for securing structural supports.
Lag BoltHeavy-duty bolts for wood fastening.Used in construction and outdoor applications.
Machine BoltStandard bolts used for machine assembly.Ideal for securing parts in industrial machinery.
Shoulder BoltBolts with a smooth shoulder for rotation.Suitable for pivot points and mechanical linkages.
Socket Head BoltBolts with a recessed hex drive.Used in confined spaces requiring high torque.
Square Head BoltBolts with a square-shaped head.Provides increased grip and torque.
Countersunk BoltFlat-head bolts for flush mounting.Used in precision applications needing a smooth surface.
Carriage BoltBolts with a smooth, domed head.Common in wood construction and metal joints.
U BoltU-shaped bolts for pipe and conduit support.Secures pipes, tubing, and machinery.
Stud BoltFully threaded rod used as a bolt.Common in flange connections and pressure vessels.
Allen BoltBolts with an internal hex drive.Ideal for secure, vibration-resistant assemblies.
Anchor BoltBolts for securing structures to concrete.Used in structural and civil engineering.

Hex Bolts

Elevator Bolts

Eye Bolts

Socket Head Bolt

J Bolt

Heavy Hex Bolts

Countersunk Bolt

Carriage Bolt

U Bolt

Stud Bolt

Anchor Bolt

Hanger Bolts

Hex Flange Bolt

Hollow Allen Bolt

Hollow Hex Bolt

  • IBR Approved Nuts

 

Type of NutDescriptionApplications/Features
Hex Coupling NutsLong hexagonal nuts used to connect two threaded rods.Ideal for extending bolt lengths in structural applications.
Hex Flange NutsHex nuts with an integrated flange base.Provides a larger bearing surface to prevent loosening.
Hex Jam NutsThin hexagonal nuts used to lock other nuts.Used in applications where space is limited and vibration resistance is needed.
Hex NutsStandard six-sided nuts used for general fastening.Versatile use in industrial, automotive, and structural projects.
K Lock NutsHex nuts with an attached washer for locking.Prevents loosening due to vibration and shock loads.
Nylock NutsHex nuts with a nylon insert for additional locking.Suitable for mechanical and automotive applications requiring vibration resistance.
Wing NutsHand-tightened nuts with wing-like projections.Used for quick adjustments without tools.
T Slot NutsSpecialized nuts designed for T-slot tracks.Used in CNC machinery and modular assemblies.
Heavy Hex NutsThicker and larger than standard hex nuts.Suitable for high-pressure and high-temperature environments.
Hex Weld NutsHex nuts designed to be welded to a surface.Ideal for secure fastening in automotive and structural frameworks.
2 Way Lock NutsNuts that lock in both directions.Prevents loosening from both rotational directions.
Nylock Jam NutsThin profile nuts with a nylon insert.Used where a low-profile lock nut is required.
Slotted NutsNuts with slots for insertion of a cotter pin.Ideal for use in applications requiring additional locking mechanisms.
Square Thin NutsThin square nuts used for secure fastening.Suitable for applications with limited space.
Lifting Eye NutsNuts with an eye loop for lifting.Used for securing lifting and rigging equipment.
Hex Cap NutsNuts with a domed cap to cover the exposed thread.Provides protection and a finished appearance.
12 Point Flange NutsFlange nuts with 12 contact points for better grip.Provides improved torque and reduced risk of stripping.
All Metal Lock NutsLocking nuts made entirely of metal.Suitable for high-temperature and corrosive environments.
Weld Square NutsSquare nuts designed to be welded.Provides a secure attachment point in structural applications.
Acron NutsDomed nuts for protecting exposed threads.Ideal for cosmetic and safety-critical applications.
  • IBR Approved Screws

Type of ScrewDescriptionApplications/Features
Wood ScrewScrews with coarse threads for fastening wood.Ideal for woodworking, furniture assembly, and carpentry.
Thread Cutting ScrewScrews that cut their own thread during insertion.Suitable for plastic, thin metal sheets, and light-duty fastening.
Mushroom Head ScrewScrews with a rounded, mushroom-shaped head.Used for applications requiring a smooth and aesthetic finish.
Thread Forming ScrewForms threads in pre-drilled holes without cutting.Ideal for plastic and light metals without pre-tapping.
Set ScrewHeadless screw used for securing objects within or against another object.Common in machinery to secure pulleys and gears.
Hex Socket Cap ScrewScrews with a cylindrical head and hexagonal socket.Used in mechanical assemblies needing high torque.
Pan Head ScrewScrews with a flat, rounded head for a flush finish.Ideal for applications where a smooth surface is required.
Self-Drilling ScrewScrews with a drill bit tip for creating their own hole.Used in metal, wood, and plastic without pre-drilling.
T Head ScrewScrews with a T-shaped head for easy grip.Suitable for T-slot tracks in industrial setups.
Square ScrewScrews with a square-shaped drive for better grip.Prevents cam-out during high-torque applications.
Truss Head ScrewScrews with a low-profile, wide, rounded head.Ideal for applications where a large bearing surface is required.
Thumb ScrewScrews with a large, knurled head for manual tightening.Used where frequent adjustments are needed.
Butterfly ScrewScrews with wing-like projections for hand tightening.Suitable for tool-free applications and quick adjustments.
Cheese Head ScrewScrews with a cylindrical, flat-top head.Ideal for electrical and mechanical applications.
Coach ScrewHeavy-duty screws with a hexagonal head for wood.Used in structural timber applications.
Oval Head ScrewScrews with a partially flat, slightly rounded head.Provides a decorative, smooth finish.
Fillister Head ScrewScrews with a deep, cylindrical head.Used for electrical and precision equipment.
Hex Cap ScrewScrews with a hexagonal head for secure fastening.Suitable for heavy machinery and automotive applications.
Hammer Head ScrewScrews with a head designed to be hammered into position.Used in construction and heavy-duty applications.
Dome Head ScrewScrews with a domed, rounded head.Provides a smooth, finished appearance.
Flange Head ScrewScrews with an integrated flange under the head.Offers a larger surface area to prevent loosening.
Knurled Head ScrewScrews with a textured head for better grip.Ideal for applications requiring manual adjustments.
Mating ScrewScrews paired with mating fasteners for secure joints.Used in assemblies requiring high precision.
Button Head Cap ScrewScrews with a low-profile, rounded head.Suitable for applications where appearance matters.
Countersunk Head ScrewScrews with a conical head for flush fitting.Used when a smooth, flat surface is required.
  • IBR Approved Washers

Type of WasherDescriptionApplications/Features
Wedge Lock WasherTwo-piece washer provides tension to prevent loosening.Ideal for high-vibration environments.
Square WasherSquare-shaped washer for even load distribution.Used for structural applications to prevent damage.
Spring Lock WasherSplit washer that applies spring tension.Prevents loosening caused by vibration and torque.
Self-Locking WasherWasher with a locking mechanism for secure fastening.Used in critical machinery requiring permanent fastening.
Sealing WasherWasher with a rubber seal for leak prevention.Ideal for plumbing and fluid-tight applications.
Plain Flat WasherStandard washer for distributing load under fasteners.Reduces surface damage and distributes pressure evenly.
Ogee WasherThick, curved washer for heavy-duty support.Used in timber construction and structural applications.
Industrial WasherHeavy-duty washers designed for industrial use.Suitable for high-stress environments.
Hex WasherHexagonal washer to provide a better grip.Used with hex bolts for improved load distribution.
Finishing WasherDecorative washer for aesthetic purposes.Ideal for visible fastening points.
Fender WasherLarge outer diameter washer for load distribution.Prevents damage on soft or thin materials.
Conical WasherTapered washer to provide axial load resistance.Ideal for applications needing consistent tension.
Countersunk WasherWasher designed to accommodate countersunk screws.Used for flush mounting of fasteners.
Square Beveled WasherAngled washer for use on sloped surfaces.Used in structural steel assemblies.
Curved Wave WasherWasher with a wavy profile for spring action.Provides tension in dynamic environments.
External Tooth Lock WasherWasher with external teeth for superior locking.Used for electrical and mechanical connections.
Internal Tooth Lock WasherWasher with internal teeth to prevent loosening.Ideal for applications with restricted space.
Internal Tab WasherWasher with internal tabs for secure locking.Used in rotating and high-vibration assemblies.
Tab WasherWasher with tabs for locking against rotation.Provides additional locking for critical fasteners.
Structural WasherLarge, heavy-duty washer for structural use.Used in heavy-load-bearing applications.