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.

Self Drilling Screw

What is a Self Drilling Screw?

A Self Drilling Screw is a type of fastener that combines the functions of a drill bit and a screw into one. It features a sharp drill-point tip that creates its own pilot hole as it's driven into materials like metal or wood. This eliminates the need for pre-drilling, significantly speeding up installation and simplifying tasks in construction, roofing, and sheet metal applications.

Key Features of Self Drilling Screw:

  • Drill Point Tip: Functions like a drill bit to penetrate materials without a pilot hole.
  • Threaded Shank: Ensures secure fastening and holds materials tightly together.
  • Variety of Head Styles: Available in hex, pan, flat, and more for diverse uses.
  • Time-Saving Design: Speeds up assembly by eliminating the drilling step.
  • Corrosion Resistance: Often made with stainless steel or coatings for durability.
  • Precision Fit: Designed for clean, tight, and secure connections.

Common Uses of Self Drilling Screw:

  • Metal Framing: Fastening steel studs and frames in construction.
  • Roofing: Securing metal sheets, panels, and cladding.
  • HVAC Systems: Fixing ductwork and air system components.
  • Automotive Applications: Used in body panel assembly and repairs.
  • Electrical Installations: Mounting boxes, panels, and conduit clips.
  • Wood-to-Metal Joints: Ideal for fencing, framing, or general construction.
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
Self Driling Screw Export Countries

Self Driling Screw Manufacturer, Supplier, Exporter in Countries

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

Manufacturer & Exporter of Self Driling 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