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.

Hex Socket Cap Screw

What is a Hex Socket Cap Screw?

A Hex Socket Cap Screw, also referred to as an Allen bolt or socket head cap screw, is a high-strength fastener with a cylindrical head and a recessed hexagonal drive hole. Designed to be tightened using a hex key (Allen wrench), it is ideal for applications where space is limited or a flush surface is required. These screws are typically made from alloy or stainless steel for durability and corrosion resistance.

Key Features of Hex Socket Cap Screw:

  • Hexagonal Recessed Head: Allows for precise torque using a hex key.
  • Compact Cylindrical Head: Ideal for tight or confined assemblies.
  • High Tensile Strength: Designed for load-bearing and high-stress environments.
  • Corrosion Resistant: Available in stainless steel and coated options for harsh conditions.
  • Precision Threading: Ensures a strong, reliable hold during installation.
  • Versatile Sizing: Offered in a wide range of diameters, lengths, and thread types.

Common Uses of Hex Socket Cap Screw:

  • Machinery Assembly: Used in assembling machine components and equipment.
  • Automotive Applications: Ideal for engine and transmission assemblies.
  • Aerospace Industry: Suitable for high-strength, weight-sensitive assemblies.
  • Electronics & Robotics: Perfect for precision and compact installations.
  • Furniture Assembly: Offers clean aesthetics and strong hold in modular designs.
  • Tool & Die Manufacturing: Essential for accurate, high-stress fastening needs.
Screw Specifications

Screw Specifications

Overview
Size & Dimensions
Standards
Strength Grades
Materials
Applications
ProductScrews – Machine, Wood, Self-Tapping, Socket Head, Countersunk, etc.
Head StylesHex, Pan, Round, Flat, Oval, Button, Truss
Drive TypesSlotted, Phillips, Pozi, Torx, Hex Socket, Combination
Thread TypesMetric (ISO), UNC, UNF, BSW, BA, BSF
Standard RangeM1.6 to M100 / #0 to 2” (Inch)
Length2 mm to 500 mm (or customized)
Thread PitchFine / Coarse / Custom
ISO ISO 898 – Mechanical properties
ISO 4762 – Hex socket head cap screws
ISO 4014 / 4017 – Hex head screws
ISO 7045 / 7046 / 7047 – Phillips/Pozi screws
DIN DIN 933 – Hex head screws
DIN 912 – Hex socket screws
DIN 7985 – Cross recessed pan head screws
DIN 84 – Slotted machine screws
ANSI / ASME ASME B18.2.1 – Square & hex bolts/screws
ASME B18.3 – Socket screws
ASME B18.6.3 – Machine/tapping screws
ASME B1.1 – UNC/UNF threads
BS BS 4183 – Cheese head screws
BS 3643 – Metric threads
BS 2470 / 2471 – Wood screws
JIS JIS B1180 – Metric hex bolts/screws
JIS B1111 – Machine screws
JIS B1122 – Socket head screws
Thread Types ISO 261 / ISO 965 – Metric threads
ANSI B1.1 – UNC/UNF
BSW, BSF, BA – British standards (mostly obsolete)
Metric GradesISO 8.8, 10.9, 12.9 – Tensile strength based
SAE GradesGrade 2 (low), Grade 5 (medium), Grade 8 (high strength)
Other SpecsASTM A193, A320, A307 (for bolts and screws in high-temp or structural applications)
Stainless Steel304, 316, 316L, 321, 347, etc.
Carbon SteelLow, medium, and high carbon steels with or without plating
Alloy SteelHigh strength alloys like 4140, EN19, EN24
Other AlloysBrass, Copper, Aluminum, Titanium, Inconel, Monel, Hastelloy
Industries Automotive, Aerospace, Construction, Electronics, Furniture, Oil & Gas, Marine, Railway, General Engineering
Common Uses Assembly, Mounting, Structural fastening, Mechanical joins, Surface finishing, Vibration resistance
Most Selling Types Of Screws

Most Selling Types Of Screws

Wood Screw Wood Screw Set Screw Set Screw Hex Socket Cap Screw Hex Socket Cap Screw Pan Head Screw Pan Head Screw Self Drilling Screw Self Drilling Screw T Head Screw T Head Screw Butterfly Screw Butterfly Screw Hex Cap Screw Hex Cap Screw Countersunk Flat Head Screw Countersunk Flat Head Screw Countersunk Head Screw Countersunk Head Screw Oval Head Screw Oval Head Screw
Hex Socket Cap Screw Export Countries

Hex Socket Cap Screw Manufacturer, Supplier, Exporter in Countries

Country Country Country Country
Hex Socket Cap Screw Exporter in Kuwait Hex Socket Cap Screw Exporter in India Hex Socket Cap Screw Exporter in Oman Hex Socket Cap Screw Exporter in Iran
Hex Socket Cap Screw Exporter in Qatar Hex Socket Cap Screw Exporter in China Hex Socket Cap Screw Exporter in UAE Hex Socket Cap Screw Exporter in Africa
Hex Socket Cap Screw Exporter in Turkey Hex Socket Cap Screw Exporter in Mexico Hex Socket Cap Screw Exporter in Canada Hex Socket Cap Screw Exporter in Malaysia
Hex Socket Cap Screw Exporter in Saudi Arabia Hex Socket Cap Screw Exporter in Brazil Hex Socket Cap Screw Exporter in USA Hex Socket Cap Screw Exporter in Sri Lanka
Hex Socket Cap Screw Exporter in Australia Hex Socket Cap Screw Exporter in Nigeria Hex Socket Cap Screw Exporter in 85+ countries
Hex Socket Cap Screw Export Countries

Manufacturer & Exporter of Hex Socket Cap Screw in the Following Countries

Country Country Country Country Country
Saudi Arabia Kazakhstan Zimbabwe Netherlands India
Afghanistan Belgium UAE Israel Europe
New Zealand Mexico Canada Venezuela United Kingdom
United States South Africa Malaysia Poland Germany
Singapore Sri Lanka Australia Brazil Ireland