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.

Countersunk Head Screw

What is a Countersunk Head Screw?

A Countersunk Head Screw is a type of fastener designed with a flat or slightly domed top and a conical underside that enables it to sit flush or slightly below the material's surface. This design offers a clean, smooth finish with no protrusions. Countersunk screws typically come with slotted, Phillips, or Torx drive styles and are available in standard head angles such as 82°, 90°, or 100°.

Key Features of Countersunk Head Screw:

  • Flush Finish: Ensures the screw sits level with or below the surface for a smooth appearance.
  • Tapered Underside: Designed to fit into countersunk holes securely.
  • Various Head Angles: Available in different angles like 82°, 90°, and 100°.
  • Drive Types: Comes in slotted, Phillips, or Torx drive options for convenience.
  • Material Options: Manufactured from stainless steel, brass, alloy steel, or carbon steel.
  • Threading: Available in both fully and partially threaded variants.

Common Uses of Countersunk Head Screw:

  • Woodworking: Used in cabinetry, furniture, and trim for a flush and aesthetic finish.
  • Metalworking: Ideal for applications in automotive and aerospace requiring smooth surfaces.
  • Electronics: Helpful in tight spaces where surface protrusions must be avoided.
  • Construction: Commonly used in drywall, decking, and panel installations.
  • Decorative Applications: Suitable for visible assemblies needing clean aesthetics.
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
Countersunk Head Screw Export Countries

Countersunk Head Screw Manufacturer, Supplier, Exporter in Countries

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

Manufacturer & Exporter of Countersunk Head 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