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| Material: | Carbon Steel |
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| Type: | Hexagon Head |
| Connection: | Common Bolt |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Payment Methods: |
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| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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Product Description:
Knocking type back bolt is an anchor used for dry hanging of stone curtain walls, which is mainly characterized by mechanically locking the board to the concrete structure. This type of back bolt usually consists of a conical screw, a plum blossom expansion ring, a sleeve, a flat washer, a spring washer, and a hexagonal nut.Introducing our high-quality Concrete Self Tapping Anchor Bolt, designed to provide secure and reliable fastening solutions for a variety of applications. Made from durable materials, this anchor bolt is ideal for use in concrete structures, ensuring a strong and long-lasting hold. The self-tapping feature allows for easy installation without the need for pre-drilling, saving you time and effort during construction or renovation projects. Whether you are working on industrial, commercial, or residential projects, this anchor bolt is a versatile and dependable choice. Trust in the strength and durability of our Concrete Self Tapping Anchor Bolt to meet your fastening needs with precision and reliability.






| Transportation methods | water transport, land transport, air-conditioned transport, logistics transport, express transport. |
| Packaging | Carton packaging and customized packaging. |
Our company is a fastener Co., Ltd, which has a history of several decades and produces a lot of screw, bolt, nut, spring, turning parts and other spare parts.
Support customization of incoming drawings.
Hope to establish business relationship with you! If you want to know more about our company, Please reply me for more details about our products. Thank you!
Hanyang Fasteners is a company specializing in standard and non-standard fasteners, integrating production, sales, and research and development. In line with the business philosophy of "integrity management, advocating norms", it gives full play to regional and industrial advantages, and serves Customers all over the country, providing professional fastener connection solutions.
We integrate all aspects of manufacturing, development, and service, focusing on providing customers with comprehensive supporting services. With excellent entrepreneurial spirit, strict management, high-quality production, high-precision inspection, and high-standard service!
The main production standards are: DIN, ANSI, BS, ISO, JIS, GB, UNI and other standards, as well as non-standard products: Materials involved: Carbon steel, alloy steel, stainless steel, copper, nylon, etc. The product category includes various screws, bolts, nuts and other accessories.
With high-quality fastener products and sincere service, it has won the recognition of customers in various fields of society. The products are used in machinery, new energy, environmental protection equipment, medical equipment, communication equipment, power facilities, electronic products, food machinery, petrochemical, Ship assembly, pump valve pipeline, building curtain wall, open air and other industries, the products are well received by customers









| Q1: Are You Manufacturer or Trading Company? |
| A: We are the 100% manufacturer with more than 15 years of experience in fastener and Hardware. |
| Q2: What Should I Provide to Get a Quotations? |
| A: For standard part: Material/Quantity/Size/Surface Treatment; For Non-standard part: We just require drawings or samples for production. |
| Q3: How to Ensure the Products Quality? |
| A: We are responsible for quality control not only of the production line, but also of the entire ready-made order. Each order needs to be inspected in detail before shipment. |
| Q4: Is the Sample Free? |
| A: We will provide samples free of charges, you only need to bear the freight. If you want to customize the samples, you need to pay the proofing fee. |
| Q5: What is the Lead Time for Sample and Mass Production? |
| A: The sample production date is 7 days, and the mass production date is 15 days, which will be confirmed based on the formal order.(depending on Product & Quantity) |
| Q6: What are the shipping methods? |
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A:We can choose DHL, Fedex, UPS, as well as sea or air transportation.
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| Q7:What are the payment terms? |
| A: Our payment terms are usually 30% T.T deposit in advance and 70% balance before shipment. |
| Q8:Do you accept small orders? |
| A: Yes, but the minimum order quantity requirements are different for different models. Please feel free to contact us with drawings of the products, such as color and material. |
| Q9:Can you customize products in special shapes? |
| A: Yes, we can provide OEM and ODM. If you can't find the products you need in our website, you can send pictures/photos and drawings of the products you need by email, or you can send us samples by DHL/UPS, then we can develop new models for you |