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.

Butterfly Screw

What is a Butterfly Screw?

A Butterfly Screw, also known as a wing screw or wing bolt, is a type of fastener that features two flat, wing-like projections on the head. These “wings” allow the screw to be tightened or loosened by hand without the need for tools. The design makes it ideal for applications where frequent adjustments or quick assembly/disassembly is required.

Butterfly screws are typically made from materials like stainless steel, brass, or plastic, depending on the application. Their ergonomic design provides an easy grip for manual operation.

Key Features of Butterfly Screw:

  • Winged Head Design: Allows for easy hand tightening and loosening.
  • Tool-Free Operation: No screwdriver or wrench required.
  • Reusable: Can be used multiple times without damage.
  • Corrosion Resistance: Often available in stainless steel for outdoor or humid environments.
  • Variety of Sizes: Available in multiple diameters and lengths to suit various needs.
  • Secure Grip: Wings offer excellent torque when turned by hand.

Common Uses of Butterfly Screw:

  • Electronics Enclosures: For securing covers that require frequent access.
  • Furniture Assembly: Especially for modular or adjustable parts.
  • Lighting Fixtures: Used in clamps and mounts where adjustability is needed.
  • Musical Equipment: Common in drum hardware and speaker stands.
  • DIY Projects: Popular for home repairs and hobby applications.
  • Industrial Equipment: Used where quick assembly/disassembly is necessary without tools.
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
Butterfly Screw Export Countries

Butterfly Screw Manufacturer, Supplier, Exporter in Countries

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

Manufacturer & Exporter of Buttefly 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