**Product Specifications:**
- **Model No.:** M3-M30
- **Certificate:** CE, ISO
- **Production Experience:** Over 15 Years
- **After Sales Service:** We are here to help you solve any issues
- **Supply From:** Directly from the factory
- **Trademark:** HighFly Fastener
- **Transport Package:** Paper Case
- **Specification:** DIN, DIN6923, IFI-145
- **Origin:** China
- **HS Code:** 7318159090
**About Hengfei Fastener Co., Ltd.**
Hengfei Fastener Co., Ltd. is a professional manufacturer of all types of nuts, including wing nuts, slotted nuts, and more. Our products are designed to meet international standards such as ISO, DIN, ANSI, JIS, and BS. With over 15 years of production experience, we ensure top-quality fasteners that are reliable and durable.
**Wing Nuts Details:**
- **Standard:** ISO, DIN, ANSI, JIS, BS
- **Grade:** 6
- **Mark:** Customized according to customer requirements
- **Size:** M5-M12
- **Finish:** Plain, black, zinc-plated, H.G.D., etc.
- **Material:** Carbon steel
- **Delivery Time:** Typically 30–40 days
- **Quality:** High quality
- **Packaging:** Cartons and pallets or as per customer request
**Product Images:**
[Image 1: Alloy Steel Wing Nuts / Butterfly Nut / DIN 316 / DIN 317]
[Image 2: Alloy Steel Wing Nuts / Butterfly Nut / DIN 316 / DIN 317]
[Image 3: Alloy Steel Wing Nuts / Butterfly Nut / DIN 316 / DIN 317]
[Image 4: More Products – Alloy Steel Wing Nuts]
[Image 5: Additional Product Range]
[Image 6: Sample Products – Alloy Steel Wing Nuts]
**Other Nuts Offered:**
- **Material:** Carbon steel, Alloy steel, Stainless steel, Brass
- **Surface Treatment:** ZP, Phosphating, H.D.G., Mechanical Galvanized, Powder Coating, Dacromet
- **Types of Nuts:** U Nuts, Hexagon Nuts, Hexagon Weld Nuts, Hexagon Flange Nuts (Plain & Serrated), Square Weld Nuts, Castle/Slotted Nuts, Nylon Insert Nuts, Domed Cap Nuts, Square Nuts, T-Nuts, Lock Nuts, and special nuts based on customer specifications
**Technical Information:**
| Standard | DIN, ASME, SIO, JIS, BS, NFE, GOST |
|----------|------------------------------------|
| Size Range | Diameter: M5 - M64; 1/4" - 2 1/2"; Length: 10-1000mm; 1/2" - 40" |
| Material | SS304, 316, 316L, 316LN, 316Lmod, 316Ti, 317L, 317LN, 321, 310S, 904L, 254SMO, AL-6XN, 1.4529, Duplex 2205/2507, Hastelloy C4, C22, C276, C2000, B2, B3, G3, G30, Hastelloy X, Inconel 600, 601, 617, 625, 690, 718, 725, X750, Incoloy 800/800H/800HT, Incoloy 825, 901, 925, 926, Monel K500, Monel 400, Titanium Alloy GR2/5/7, Urea steel 724L, 725LN, Alloy 20, Alloy 28, Alloy 31, Alloy 286, Alloy 80A (Nimonic 80A) |
| Product Range | Bolt, U-bolt, Studs, Threaded Bar, Nut, Washers, Machining Parts |
| Marking | Customized as per client’s requirements (OEM) |
| MOQ | Washers: 100 pcs, Nuts: 50 pcs, Bolts and Studs: 10 pcs |
| Sample Policy | Free samples if available, buyer pays freight |
| Sample Time | Approximately 7–10 days |
| In Stock Items | SS304/316 bolts, nuts, washers M6–20; DIN7967 Pal nuts M6–20; Titanium alloy bolts, nuts, washers M6–20 |
| One Stop Purchase | We provide comprehensive purchasing solutions with experienced sales staff |
**Frequently Asked Questions (FAQ):**
**Q: Are you a trading company or manufacturer?**
A: We are a factory with an independent foreign trade sales department located in Qingdao City.
**Q: How long is your delivery time?**
A: If the goods are in stock, it usually takes 5–10 days. If not in stock, it may take 15–20 days depending on the quantity.
**Q: Do you provide samples? Are they free?**
A: Yes, we can provide free samples if available, but the buyer will need to cover the freight cost.
Slewing Controller
Slewing Controller is a kind of Tower Crane slewing control device, combined speed and voltage regulation and eddy current speed controling. The slewing control block control the speed of eddy current torque motor, to make the tower crane slewing mechanism start, working and stop smoothly. This kind of Slewing Controller is used to regulate and control the speed of three-phase torque motor of AC 50Hz, voltage 380V.
HRCV slewing controller is a hoisting slewing controller developed by our company according to service condition of customer.
The main technical feature as follows:
(1) This product combined the controller and thyristor module,the connection of the users is simple and easy.Prevent the damage of the controller and thyristor module caused by mis-wiring of the customer.
(2) Realize the best optimization of AC voltage control curve and DC voltage control curve.
(3) With the function of inching during operation, realize the accuracy.
(4) The electronic components adopt the imported industrial grade chip, on the control panel directly with power supply and direction indicator light.
(5) Adopt the coating treatment on the printed circuit board,enhance the dust prevention and anti-condensation capacity of the circuit board.
Slewing Controller,Slewing Control Block,Eddy Current Torque Motor,Slewing Controller for Tower Crane,Slewing Block
SHEN YANG BAOQUAN , https://www.bq-cranes.com