SS304 Spring Locking Butterfly Wing Nut and Eye Screw Bolt
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Product Highlights
- SS304 Stainless Steel Material: Made from high-quality SS304 stainless steel for superior durability and corrosion resistance.
- Spring Locking Mechanism: Features a spring locking design for secure fastening and vibration resistance in machinery.
- Multiple Standard Compliance: Complies with DIN 444, DIN 580, ANSI, JIS, IFI, and other international standards.
- Wide Material Selection: Available in SS304, SS316, Carbon Steel, Brass, and Titanium for diverse application needs.
- Custom OEM/ODM Service: Supports custom designs based on customer drawings with strong R&D and manufacturing capacity.
- ISO Certified Quality: Manufactured under ISO9001, ISO45001, and ISO14001 with 100% inspection and MTC provided.
- Flexible Packaging Options: Standard bulk packing with options for custom small boxes, private labels, and barcode printing.
- Fast Delivery for Stock Items: In-stock items can be shipped within 7-10 days, ensuring quick turnaround for urgent needs.
Product Attributes
- Customization
- Available
- Material
- Stainless Steel
- Type
- Round Head
- Model NO.
- DIN444 Butterfly wing nuts
- Connection
- Hinged Bolts
- Head Style
- Round
- Standard
- DIN, ANSI, GB, JIS, BSW, GOST
- Grade
- 8.8
- Application
- Machinery, Chemical Industry, Environmental, Building
- Finish
- Polishing
- Transport Package
- Poly Bag, Small Box, Carton+Pallet
- Specification
- BULK IN 25KGS CARTON/ PALLET
- Trademark
- EN
- Origin
- Shanghai
- HS Code
- 7318150000
- Production Capacity
- 1000 Tonnes/Month
- Package Size
- 10.00cm * 5.00cm * 5.00cm
- Package Gross Weight
- 0.500kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of SS304 Spring Locking Butterfly Wing Nut and Eye Screw Bolt
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Product Description
| Product Name | SS304 Spring Locking Butterfly Wing Nut and eye Screw bolt |
| Eye Bolt Standard | DIN 444 din 580 & ANSI & JIS & IFI |
| Thread | Unc, Unf, Metric,UNS, UNR |
| Head Type | Hex head, Flange head, T head, Eye head, U head, Round head, Ball head,Cap head,Socket head, Etc |
| Material |
Stainless steel: 304, 316, 316 L, 321, A4-80, A4. Duplex stainless steel:2205,2507,904L.
Alloy steel: D2-80,YFT8,HastelloyC-276,6061,10B21,35K,38K,35#,40Cr,45#,SCM435,35CrMo,TA2,TC4,35K-C,AG35ACr.
Carbon steel: 10B33, 1035K Brass H62. Aluminum and titanium alloys
|
| Grade | Grade 8.8, Grade 10.9, Grade 12.9, A2-50, A2-70, A2-80, A3, A3-70, A4-50, A4-70, A4-80, D2-80, D6 |
| Finish | Zinc Plated, HDG ,Black ,Bright,GOEMET |
| Price Term | EXW/FOB/CFR/CIF/FCA |
| Packing | bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand |
| Leading Time | 20-30 days or based on order required |
Eye bolt, also known as sheep eyebolt, lifting eye bolt, or swing bolt, has a circular "eye ring" on one end that can be connected to ropes, chains, hooks, or other similar objects, and a threaded end that can be fixed to the corresponding structure.
T&Y Hardware selects high-quality materials to manufacture eye bolts, ensuring their durability and corrosion resistance properties. Every bolt undergoes strict quality inspection to ensure compliance with international standards and customer demands.
Whether you need a small light-eye bolt or a large heavy-eye bolt, we can provide you with the right solution.
Our supply includes forged eye bolts for heavy equipment, open eye bolts, closed eye bolts, pigtail eye bolts, eye welding bolts, stainless steel eye bolts, eye self-tapping screws, eye concrete anchor bolt, etc. In addition, other kinds of bolts can also be customized with us.
Eye bolt by material
Our eye bolts can be made for you using stainless steel, carbon steel, aluminum, brass, titanium alloy, and other metal materials. Each material has its own unique advantages and applicable scenarios. You can choose flexibly according to your needs. If you need help, feel free to contact us.
Other types of bolts
In addition to eye bolts, we supply hexagon head, square head, T-shaped head, butterfly head, round head, socket hexagon head, U-shaped head, double head, L-shaped J-shaped and other types of bolts. Start your query right away
Accessories you may need
* Certified & Compliant: Fully compliant with ISO9001, ISO45001, ISO14001, and RoHS to guarantee top-tier international quality and eco-friendly standards.
* OEM/ODM Expert: Send us your drawings or creative ideas-we possess the strong R&D capacity to deliver perfect finished products

T&Y Hardware focuses on the production and supply of all kinds of bolts (including hex bolts, flange bolts and other standard parts and non-standard products), nuts (such as hex nuts, lock nuts, spring nuts, etc.), washers (flat washers, spring washers, lock washers), screws (mechanical screws, self-tapping screws, wood screws), anchors (sleeve anchors, chemical anchors, wedge anchor), threaded rods (full thread studs, double-headed studs, weld studs), high-precision stamping parts and CNC precision machining parts.
Each year, we actively participate in leading hardware and machinery exhibitions worldwide, including the Saudi Building Materials Exhibition, Fastener Fair Stuttgart, Las Vegas Auto Parts Exhibition, Atlanta Machinery Exhibition, and Hannover Messe.These international platforms allow us to showcase our latest innovations while forging strong connections with top industry leaders. We sincerely look forward to meeting new potential partners at our next stop to explore collaborative business opportunities and drive mutual growth.




Q1: What is your Minimum Order Quantity (MOQ)?
A1: For standard in-stock items, we support small trial orders with no strict MOQ. For mass production or custom orders, the MOQ generally ranges from 100 kg to 500 kg per specification, depending on the product size and processing requirements. Please contact our sales team for specific details.
Q2: How do you ensure the quality of every process?
A2: As an ISO 9001 certified manufacturer, every production stage is strictly monitored by our in-house Quality Control department. We utilize advanced testing equipment (including tensile testing machines, salt spray testers, and thread gauges) to conduct 100% inspections. We provide Material Test Certificates (MTC) for every batch and welcome third-party inspections like SGS or TÜV.
Q3: How long is your delivery time?
A3: For in-stock items, the delivery time is 7 to 10 days. For mass production or custom orders, it generally takes 30 to 45 days, depending on the order volume and specific production requirements.
Q4: What is your payment method?
A4: Our standard payment term is 30% T/T deposit in advance, with the remaining 70% balance paid against the B/L copy. For orders under $1,000 USD, we recommend 100% advance payment via T/T to minimize international bank charges. We also accept L/C at sight for large orders.
Q5: Can you provide free samples?
Optimized: Yes, we provide standard samples free of charge, but the courier/freight cost is covered by the customer. For custom-made samples based on your drawings, a sample tooling fee may apply, which is refundable upon bulk order placement.
Q6: What materials and strength grades can you provide for your fasteners?
A6: We work with a wide range of materials, including Carbon Steel, Alloy Steel, Stainless Steel (SUS304/SUS316), and Brass. For strength grades, we specialize in high-tensile fasteners, offering Grade 4.8, 8.8, 10.9, and 12.9 to meet rigorous industrial and engineering standards.
Q7: What surface treatments do you offer for corrosion resistance?
A7: We provide comprehensive surface finishing options, including Plain, Zinc Plating (White/Yellow/Black), Hot-Dip Galvanized (HDG), Black Oxide, Dacromet, and Geomet. All treatments comply with environmental standards and can meet specific salt spray test requirements.
Q8: Do you support custom packaging and private labeling?
A8: Yes. Our standard export packaging consists of 25kg cartons on sturdy, film-wrapped pallets. However, we fully support custom small box packaging, private labels, and barcode printing to help you build and promote your own brand in your local market.
About the Supplier
This supplier has been audited by CTI. Verify the report on the official CTI website with ID "QIP-ASR2441832". Items marked "" are certified.
Company Profile
Shanghai T& Y Hardware industry, 21 years only working for standard and special fasteners making and developing, more than 394 customers are from 39 countries in the world., we are the nominated suppliers for the largest producer of household from Sweden, National Electric Power Company from Israel etc, T& Y Hardware has special full line sourcing to assistant your Fasteners business better and better
With ISO9001 certification, T& Y Hardware Quality is everything, we won't sacrifice our quality for the winning more market.
T & Y Hardware working as high tensile fasteners manufacturers in China, material for bolts are class 8.8, 10.9 and 12.9, common use are for automotive and machinery Industry.
As a hsfg bolts suppliers, raw material control are very important for T& Y Hardware, Hardness testing and tensile testing per ISO 267 standard requirement, if failed, we will keep as in unqualified fasteners.
Meanwhile, T& Y Hardware also working as stainless steel bolts and nuts supplier, common material for Stainless Steel are A2-70, A4-70, A4-80, Brass, Copper, Aluminum
Product ranges are including:
Bolts: Hex bolts, Hex cap A325, A490 heavy hex bolt; Hex lag screw, Hex flange Bolts, Carriage bolts and Special bolts per custom
Nuts: Hex nuts, square Nuts, Spring Nuts, T Nuts, Special Nuts
Washer: Flat washer, spring washer, tapper washer, more details about us, please feel free to contact, we will be here 24X7 on line
About Our Factory & Business Background
- Address
- Room1-1013, No 288, Rongxing Road, Songjiang, Shanghai, China
- Terms of Payment
- LC, T/T, PayPal, Western Union, Small-amount payment, Money Gram
- International Commercial Terms(Incoterms)
- FOB, CFR, CIF, DDP, CIP, FCA
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- Shanghai, Ningbo
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2020-07-09
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Eastern Asia, Western Europe
FAQ
- What is the Minimum Order Quantity (MOQ)?
- For standard in-stock items, we support small trial orders with no strict MOQ. For mass production or custom orders, the MOQ generally ranges from 100 kg to 500 kg per specification, depending on the product size and processing requirements.
- What is the delivery time?
- For in-stock items, the delivery time is 7 to 10 days. For mass production or custom orders, it generally takes 30 to 45 days, depending on the order volume and specific production requirements.
- What are the payment terms?
- Standard payment is 30% T/T deposit in advance, with the remaining 70% balance paid against the B/L copy. For orders under $1,000 USD, 100% advance payment via T/T is recommended. We also accept L/C at sight for large orders.
- Can you provide free samples?
- Yes, we provide standard samples free of charge, but the courier/freight cost is covered by the customer. For custom-made samples based on your drawings, a sample tooling fee may apply, which is refundable upon bulk order placement.
- What materials and grades are available?
- We offer Carbon Steel, Alloy Steel, Stainless Steel (SUS304/SUS316), and Brass. Strength grades include 4.8, 8.8, 10.9, and 12.9 to meet rigorous industrial and engineering standards.
- What surface treatments are offered?
- We provide Plain, Zinc Plating (White/Yellow/Black), Hot-Dip Galvanized (HDG), Black Oxide, Dacromet, and Geomet. All treatments comply with environmental standards and can meet specific salt spray test requirements.
- Do you support custom packaging?
- Yes. We support custom small box packaging, private labels, and barcode printing to help you build and promote your own brand in the local market, in addition to our standard export packaging.
Send your message to this supplier
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