Hot Products
0102030405
Galvanized Butterfly Bolts & Union Bolts - Grade 4.8 & 8.8 from China Suppliers | Quality Factory Products
📐 Specifications
| Nominal diameter d | 10# | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 5/8 | |
| d | 0.19 | 0.25 | 0.3125 | 0.375 | 0.4375 | 0.5 | 0.625 | |
| PP | 24 | 20 | 18 | 18 | 14 | 13 | 11 | |
| n | Max | 0.97 | 1.16 | 1.44 | 1.72 | 2 | 2.31 | 2.84 |
| Min | 0.91 | 1.09 | 1.38 | 1.66 | 1.94 | 2.22 | 2.72 | |
| H | Max | 0.45 | 0.56 | 0.67 | 0.8 | 0.91 | 1.06 | 1.31 |
| Min | 0.39 | 0.5 | 0.61 | 0.73 | 0.84 | 0.94 | 1.19 | |
| h | Max | 0.15 | 0.17 | 0.18 | 0.2 | 0.21 | 0.23 | 0.27 |
| Min | 0.12 | 0.14 | 0.15 | 0.17 | 0.18 | 0.2 | 0.23 | |
| dk | Max | 0.39 | 0.47 | 0.55 | 0.63 | 0.71 | 0.79 | 0.96 |
| Min | 0.36 | 0.44 | 0.52 | 0.6 | 0.68 | 0.76 | 0.92 | |
| k | Max | 0.28 | 0.34 | 0.41 | 0.47 | 0.53 | 0.62 | 0.75 |
| Min | 0.22 | 0.28 | 0.34 | 0.41 | 0.47 | 0.5 | 0.62 | |
| L | Max | 2 | 3 | 3 | 4 | 3 | 3 | 2.5 |
| Min | 0.5 | 0.5 | 0.5 | 0.5 | 1 | 1 | 1 | |
Butterfly Screw, also called Butterfly Screw, is a kind of screw designed to facilitate hand-screw operation, with a larger lateral force surface, so that tightening operation more efficient.
🔩 Application Areas
🖥️
Display Industry
Used for fixed display components.
🚗
Automobile Industry
For insulation and frequent dismantling and maintenance of automotive components.
✈️
Aerospace Industry
Used in electronic equipment for insulation and anti-interference treatment.
🖨️
Office Equipment Industry
For the production of rust-free and beautiful practical office equipment.
🛋️
Furniture Assembly
For fixing sofas, beds, wardrobes and cabinets, ensuring stability while allowing easy removal and adjustment.
💡
Lamp Installation
For fast and convenient fixture mounting, reducing the need for tools.
🏠
Home Decoration
For wall decoration, home ornament hanging, murals and clock installation.
🏗️
Construction Field
Suitable for fixing and installation of buildings, wall hangings and decorations.
⚠️
Material Note: The oil resistance and chemical resistance of butterfly screws make them suitable for use as mechanical materials. Attention should be paid to hygroscopicity, as moisture may reduce tensile strength. In injection molding, carbon black can be added to improve outdoor weather resistance of nylon, allowing it to function effectively in high-temperature environments.
✅ Product Details
- 🔧 Thread is deep, tooth pitch is even — fastening force is good and uniform when applied.
- ✨ Products are smooth with no burrs, featuring delicate workmanship for effortless use.
- 💎 Raw materials are strictly controlled with exquisite grinding, resulting in high hardness and durability.
❓ Frequently Asked Questions
Q What is a butterfly screw and how does it work?
A butterfly screw (also known as a wing screw) is a fastener designed for hand-tightening without tools. Its wider lateral wing surfaces provide greater grip and leverage, allowing efficient tightening and loosening by hand in a variety of applications.
Q What materials are butterfly screws typically made from?
Butterfly screws are commonly made from nylon, galvanized steel, or stainless steel. Nylon versions offer excellent oil resistance and chemical resistance, while galvanized steel versions provide enhanced corrosion protection for outdoor and industrial use.
Q What size butterfly screws are available?
Butterfly screws are available in a range of nominal diameters including 10#, 1/4, 5/16, 3/8, 7/16, 1/2, and 5/8 inch sizes, with various length options to suit different installation requirements.
Q Can butterfly screws be used in outdoor or high-temperature environments?
Yes. When carbon black is added during injection molding of nylon butterfly screws, it significantly improves outdoor weather resistance. Galvanized butterfly screws are also well-suited for outdoor conditions due to their corrosion-resistant coating.
Q Are butterfly screws suitable for furniture assembly?
Absolutely. Butterfly screws are widely used in furniture assembly for items such as sofas, beds, wardrobes, and cabinets. They provide a secure and stable connection while allowing for easy removal and readjustment without the need for additional tools.
Q Does moisture affect the performance of nylon butterfly screws?
Yes, moisture can affect nylon butterfly screws. Hygroscopicity may reduce tensile strength while increasing ductility and impact absorption. It is recommended to store nylon screws in a dry environment and consider galvanized or stainless steel options for high-humidity applications.