Galvanized Butterfly Bolts & Union Bolts, Grade 4.8 & 8.8 - China Suppliers & Factory Direct Shipping
| 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. It has a wide range of applications, including but not limited to:
1. Display Industry: For fixed display components.
2. Automobile Industry: For the need for insulation and frequent dismantling and maintenance of automotive components.
3. Aerospace Industry: Used in electronic equipment on the insulation and anti-interference treatment.
4. Office Equipment Industry: For the production of never rust and beautiful practical office equipment.
5. Furniture Assembly: For the fixed sofa, bed, wardrobe and cabinets and other furniture, to ensure stability and firmness, while easy to remove and adjust.
6. Lamp Installation: For fast and convenient fixed lamps, reducing the need for tools.
7. Home Decoration Applications: For wall decoration fixed, home ornaments hanging, murals and clock installation.
8. Construction Field: Suitable for the fixing and installation of buildings, such as furniture, wall hangings and decorations.
The oil resistance and chemical resistance of butterfly screws make them suitable for use as mechanical materials, but they need to pay attention to their hygroscopicity, because moisture may reduce the tensile strength of nylon, permeability and improve ductility, impact strength and energy absorption properties. In injection molding, carbon black can be added to improve the outdoor weather resistance of nylon, so that it can still work under high temperature environment.
1. Thread is deep, tooth pitch is even, when using the force is even fastening force is good
2. Products smooth no burr, delicate work is difficult to use
3. Raw materials strictly control, exquisite grinding, high hardness
What is a Butterfly Screw and how does it work?
A Butterfly Screw, also known as a Butterfly Screw, is specifically designed to facilitate manual hand-screwing operations. It features a larger lateral force surface, which makes hand-tightening and fastening significantly more efficient without requiring extra tools.
Where are Butterfly Screws commonly used?
They are widely applied across various industries, including display setups, automotive components (especially for insulation and frequent dismantling), aerospace electronic equipment, office equipment, furniture assembly, lamp installation, home decorations, and general construction projects.
Are these screws resistant to chemicals and oils?
Yes, butterfly screws exhibit good oil resistance and chemical resistance, making them highly suitable for use as reliable mechanical materials in demanding environments.
What should I consider regarding the moisture absorption of nylon butterfly screws?
You should pay close attention to their hygroscopicity. Absorbed moisture may reduce the tensile strength and permeability of the nylon material, while simultaneously increasing its ductility, impact strength, and energy absorption capabilities.
How can the outdoor weather resistance of these screws be improved?
During the injection molding process, carbon black can be added to the nylon composition. This enhancement improves the outdoor weather resistance, allowing the screws to work effectively even under high-temperature environments.