Company Introduction

Company Introduction

Mcneil Instruments is a trusted name in the global steel and metal industry, delivering premium-quality products and customized solutions to meet diverse industrial needs. With a strong presence in the UAE and across international markets, we specialize in manufacturing and supplying stainless steel pipes, tubes, flanges, fasteners, and other high-performance metal products.

Our commitment to quality, innovation, and customer satisfaction sets us apart. Backed by years of industry expertise, we adhere to international standards and ensure precision engineering in every product we deliver. At Mcneil Steel & Alloys FZE, we aim to build long-lasting relationships with clients by providing reliable, durable, and cost-effective solutions for industries such as oil & gas, construction, marine, and petrochemicals.

Bolts Uses and Applications

Bolts Uses and Applications

Bolts are one of the most widely used fasteners, designed to provide secure and reliable connections in various assemblies. They are used in combination with nuts or washers to hold components together, ensuring strength, stability, and safety. Bolts come in different shapes, sizes, and materials, making them suitable for a wide range of industries.

Common Uses of Bolts:

  • Joining components in construction and infrastructure projects.
  • Assembling machinery and heavy equipment.
  • Securing metal, wood, or composite materials.
  • Providing structural stability in automotive and aerospace components.
  • Connecting pipelines, flanges, and industrial fittings.

Applications of Bolts:

  • Construction Industry – Building frames, bridges, and metal structures.
  • Automotive Sector – Engine assemblies, chassis connections, and vehicle parts.
  • Oil & Gas Industry – Securing pipelines, offshore platforms, and refineries.
  • Marine Industry – Used in ships, ports, and marine equipment.
  • Heavy Machinery – Reliable fastening for industrial machines.
  • Electrical and Power – Assembling panels, wind turbines, and power systems.
Bolt Specifications - Tabs with Full Table

Bolt Specifications

View All
Size & Length
Standards
Material & Types
Threads & Drive
Coating & Finishing
Certifications
Packing
Bolt SizeM 02 to M 160, Custom Sizes
Bolts Length3 mm to 1000 mm
BoltUNF, BSW, BSF, METRIC, UNC, or as required
Standard of Bolts IS1364, ISO 4014, ISO 4017, DIN 933, DIN 931, BS 1083, BS 1768, ASME B18.2.1, JIS B1180, DIN 558, ISO 4018, DIN-EN14399-4, DIN 601, ISO 4016, CSN 21301, EU 24016, DIN 7968, DIN7990, ASME B18.2.1, B18.5
Form of BoltsHex, Threading, Square, Round as per Gauge Etc.
Raw Materials SourceJSPL, Mukund Steel, Tata Steel, Dhamma Steel, Usha Martin, etc.
Threads ConfigurationASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
CertificationDual Certified As per ASTM & ASME Codes
Popular Types of Bolts Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Countersunk Bolts, etc.
ThreadsUnless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically
Test Certificate of BoltsAs per EN 10204 / 3.1 Manufacturer Test Certificate
Additional CertificationsPED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Production ProcessM24-M100: hot forging, M2-M24: Cold Forging, for custom-made connecting element machining and CNC
Head Drive of BoltsSix-Lobe, Phillips, Phillips/Slot, Slotted etc.
Packing of BoltsIN BULK: carton, pallet, Small Boxes / carton/pallet, or customer request
Surface Coating PTFE Coated Bolts, Phosphate Coating, Teflon Coating, Zinc Coating, Hot Dipped Galvanizing Coating, Cadmium Coating, Xylon Coating
Bolts Finishing Coatings & Finishes: Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, DACROMET Geometry, Mechanically Applied coating, Nickel-plated, Anodizing, Plated Zinc-Nickel, Zinc (blue, black, yellow, white), Black Oxide
Bolt SizeM 02 to M 160, Custom Sizes
Bolts Length3 mm to 1000 mm
Bolt TypesUNF, BSW, BSF, METRIC, UNC, or as required
Standard of Bolts IS1364, ISO 4014, ISO 4017, DIN 933, DIN 931, BS 1083, BS 1768, ASME B18.2.1, JIS B1180, DIN 558, ISO 4018, DIN-EN14399-4, DIN 601, ISO 4016, CSN 21301, EU 24016, DIN 7968, DIN7990, ASME B18.2.1, B18.5
Form of Bolts Hex, Threading, Square, Round as per Gauge Etc.
Raw Materials SourceJSPL, Mukund Steel, Tata Steel, Dhamma Steel, Usha Martin, etc.
Production ProcessM24-M100: hot forging, M2-M24: Cold Forging, for custom-made connecting element machining and CNC
Popular Types of BoltsHex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Countersunk Bolts, etc.
Threads ConfigurationASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
ThreadsUnless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically.
Head Drive of BoltsSix-Lobe, Phillips, Phillips/Slot, Slotted etc.
Surface Coating PTFE Coated Bolts, Phosphate Coating, Teflon Coating, Zinc Coating, Hot Dipped Galvanizing Coating, Cadmium Coating, Xylon Coating
Bolts Finishing Coatings & Finishes: Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, DACROMET Geometry, Mechanically Applied coating, Nickel-plated, Anodizing, Plated Zinc-Nickel, Zinc (blue, black, yellow, white), Black Oxide.
CertificationDual Certified As per ASTM & ASME Codes
Test Certificate of BoltsAs per EN 10204 / 3.1 Manufacturer Test Certificate
Additional CertificationsPED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Packing of Bolts IN BULK: carton, pallet, Small Boxes / carton/pallet, or customer request
Most Selling Types Of Bolts

Most Selling Types Of Bolts

Bolt Standards

ANSI and/or ASME Standards Bolts

Description Standard Measurement System
Square & Hex Head BoltsANSI/ASME B18.2.1Inch Series
Hex Head BoltsANSI/ASME B18.2.3.5MMetric
Heavy Hex BoltsANSI/ASME B18.2.3.6MMetric
Heavy Hex Structural BoltsANSI/ASME B18.2.3.7MMetric
Square Head BoltsANSI/ASME B18.2.3.10MMetric
Round Head BoltsANSI/ASME B18.5Inch Series
Round Head Short Square Neck BoltsANSI/ASME B18.5.2.1MMetric
Round Head Square Neck BoltsANSI/ASME B18.5.2.2MMetric
Round Head Square Neck Bolts With Large HeadANSI/ASME B18.5.2.3MMetric
Track BoltsANSI/ASME B18.10Inch Series
Forged Eye BoltsANSI/ASME B18.15Inch Series
Lifting Eye BoltsANSI/ASME B18.15MMetric
Hex Head BoltsDIN 931Metric
Heavy Hex BoltsDIN 6914Metric
Countersunk Square Head Bolts With Short NeckDIN 608Metric
Lifting Eye Bolts (Type A)DIN 444AMetric
Lifting Eye Bolts (Type B)DIN 444BMetric
Square Head Bolts With CollarDIN 478Metric
Forged Lifting Eyes/Eye BoltsDIN 580Metric
Carriage BoltsDIN 603Metric
Flat Countersunk Nib BoltsDIN 604Metric
Carriage BoltsDIN 607Metric
U BoltsDIN 3570Metric
Hex Flange BoltsDIN 6921Metric
Plough Bolts with 2 NibsDIN 11014Metric
Hex Head Bolts with ShankISO 4014Metric
Hex Head Bolts with NutsISO 4016Metric
Full Thread Hex Head BoltsISO 4017Metric
Hex Flange BoltsISO 4162Metric
Hex Flange BoltsISO 8100Metric
Hex Bolt With FlangeISO 8102Metric
Hex Flange BoltsISO 15071Metric
Mushroom Head Square Neck BoltsISO 8677Metric
Fine Threaded Hex Head BoltsISO 8765Metric
Hex Head BoltsIS 1363 Part 1Metric
Hex Head BoltsIS 1363 Part 2Metric
Hex Head BoltsIS 1364 Part 1Metric
Hex Head Bolts For Structural JointsIS 6639Metric
Hex Head Transmission Tower BoltsIS 12427Metric
Hexagon Flange BoltsIS 15582Metric
Fasteners Types Slider

Fasteners Types

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Nut Manufacturer

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Screw Manufacturer

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Washers Manufacturer

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Stud Bolts Manufacturer

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Ring Fasteners Manufacturer

Ring Fasteners Manufacturer

Coated Fasteners Manufacturer

Coated Fasteners Manufacturer

Custom Fasteners Manufacturer

Custom Fasteners Manufacturer

Types of Round Bars

S.No Round Bar Type
1Stainless Steel Round Bars
2SS Round Bars
3Carbon Steel Round Bars
4Alloy Steel Round Bars
5Duplex Steel Round Bars
6Inconel Round Bars
7CS Round Bars
8Hastelloy Round Bars
9Copper Round Bars
10Alloy 20 Round Bars
11Titanium Round Bars
12Aluminium Round Bars
13Super Duplex Round Bars
14AS Round Bars
15Monel Round Bars
16Nickel Alloy Round Bars
17Copper Round Bars
18Alloy Round Bars
19Copper Nickel Alloy Round Bars
20Mild Steel Round Bars
21Steel Round Bars
22Stainless Round Bars