A Brief Introduction About Marine Grade Boat Anchors

Hiever is a professional manufacturer of hardware accessories for fishing boats, dinghies, deck boats, etc. Hiever offers a wide range of mooring accessories and deck accessories. The following article mainly briefly introduces the anchor accessories.

Key words:Anchor; Grapnel anchor; Folding anchor; Swivel anchor; Double swivel anchor; Bruce anchor; Delta anchor; Danforth anchor


Brand new SS316 anchors and anchor connectors from Hiever:


1. Foldable Grapnel Anchor

The folding grapnel anchor has a tremendous holding power. Folding grapnels include numerous gripping tines, making them perfect for anchoring to a rocky or uneven bottom. These anchors are frequently suggested for jet skis and small boats as backup or emergency anchors.


Click the picture above to learn more about foldable grapnel anchor 


2. Swivel Anchor Connector

Anchor connectors are safe fall prevention anchor points of attachment for different kinds of boats. We adopt the precision casting process and produce the Swivel anchor connectors with high hardness and wear resistance through multiple and professional processes.


Click to know more about swivel anchor connector


3. Multi-Directional Double Swivel Anchor Connector

Double joint chain swivel connector has a multi-Directional rotating head as well as the ability to swing left and right, which lessens hull sway brought on by chain rotation. It has a longer useful life, is rust-resistant, and can endure prolonged submersion in seawater.


Click to learn about more about this cost-effective double swivel anchor connector


Traditional anchors supplied by Hiever:


1. Bruce anchor

The Bruce anchor, favored for its practicality, is one of the most popular types of boat anchors today. It has a “claw” anchor at the front end. It is more suitable for short-term use during the day when the water flow is calm. Different sizes and materials available.

2. Delta anchor

Delta anchor can effectively stay on most seabeds. Generally speaking, the grabbing force of delta anchor is 30 to 40% higher than that of bruce anchor. Delta anchor has stronger performance and can realize self launching,

3. Danforth anchor

Danforth anchor is a kind of light and small stockless anchor. From the appearance, danforth anchor has a flat fluke. Small fishing boats or cruise ships often configure it. Danforth anchor can be embedded in sand or muddy bottom.



Visit Hiever website to know more high quality marine grade hardware products. 




What Is The Qualified Marine Grade Stainless Steel Casting Hardware?

What Is The Qualified Marine Grade Stainless Steel Casting Hardware?

If you are the buyer of  marine grade stainless steel hardware ,when you source this products from google or B2B platform, every supplier would tell you that their product are high grade, good quality . From their website and other information they send ( photos or videos ) to you , it seems there is not any quality problem of their hardware products .

So you choose one supplier to place your order, maybe you find the supplier who is the long time member of Alibaba, you assume that the quality of this company is good ,you place order and  everything go smoothly until you get the goods.

When you get these marine stainless steel hardwares, you find most of them looks good, but when you see the product carefully one by one, you can find the small flaws on the products(photo as below) :

Picture 1,2 and 3:  the problems occurred in the investment casting process .

Picture 4 and 5:  the problems related with the welding and polishing process.


These small flaws on the stainless marine grade hardware make you unhappy, so you decide to contact your supplier, two results: one is that they will tell you that is normal, these small places do not affect your usage and they refused to change the new one for you; the other one is that they promised to change the better one for you, but you need pay the freight again and they ask you to send back the hardware you picked out for replacing. Both the two solutions can not make you happy ,but you can do nothing …… You are very upset and do not know how to do in the future:need find a new supplier, how about the quality and service of the new supplier ? or keep business with the same supplier ? This is a true story happened on one of our customer (before he finds our company).


Now Hiever can give you the correct answer ! You should change these kind low quality supplier immediately!

And Hiever can tell you clearly that any marine grade hardware with these flaws are not qualified! What is more ,these small flaws will easy to rust when you use them in the sea and other harsh accasions even the material is SS316.


Hiever focus on providing you the real qualified high quality marine grade Stainless hardware for customers all over the world with many years! We inspect every product before shipment and the most important all, we inspect strictly during every process, the unqualified parts can not deliver to the next step, this can ensure that the final finished products are the qualified! Hiever promised that you can never find these unqualified marine hardware from our orders !

In a word , choosing one professional supplier with both strict inspection and high level production standard is very important ! Contac with us now to find what is the standard of the high quality marine grade stainless hardwares ?





Stainless steel hinge-hiever

What Are Differences Between Stainless Steel AISI316 And AISI304?

Stainless Steel AISI316 contains Molybdenum for more corrosion resistance, but much more expensive; Stainless Steel AISI304 doesn’t contain Molybdenum, and it is cheaper choice in cost.

 304 material does not contain molybdenum, and the nickel content is 8% or more; 316 material contains molybdenum 2.0% or more, nickel 10% or more. The difference between them is corrosion resistance, but they are the same strength .

 Normally, for marine field hardware , SS316 is widely used ; For other outdoor environment , SS304 is most suggested .

 The Chemical Composition of Stainless Steel 304/3016/316L :

What Are Differences Between Stainless Steel AISI316 And AISI304?

To ensure the material is 100% correct , the strict quality control and testing are necessory. 

            SS316 marine hinge

Every manufacturing steps should be comform to the standard production rules ,that is the base that every products from us are reliable.

What is Advantage of Investment Casting ?

Investment Casting is a versatile method which has many advantages over other technologies such as machining, forging, sintering or other casting processes.

You can benefit from the advantages of investment casting in the production of your components:

  • High level of design flexibility enables complex geometries to be achieved in a single cast
  • Intricate structures
  • Near net shape castings with reduced machining requirement
  • High dimension accuracy
  • Excellent surface finish
  • Wide range of materials and alloys assuring rigorous implementation of customer requirements
  • Economic viability, cost-effective production from single items through to large-scale production

How to ensure these features mentioned above ? Below is the whole process of investment casting . As this is precision casting , mold developing is at least 2 weeks , the manufacturing time is at least 25-30 days , and any improper step operation will effect the next steps,the loss caused by the improper operation can not be repairable in most times, that is why you must rely on a professional and experienced investment casting factory! 


process of investment casting

Where Do I Find Commercial Heavy Duty Steel Hinges?

Reasons For Choosing Industrial Heavy Duty Stainless Hinges

The common type of Heavy Duty Steel Hinge is the galvanized metal hinge,these galvanized hinge is often found on the doors of commercial grade buildings, it can be used in other applications as well.Commercial industrial hinges are designed to support heavy loads of up to fifteen thousand pounds, or nearly twice as much weight as regular hinges. For these types of hinges, you will need to use a hot galvanized treatment or poweder coating to prevents corrosion.

If you have more budget,we would like to recommend you the stainless steel casting hinges , it is supreme corrosion resistant and very sturdy for long use life .  Most surface treatment for the stainless steel industrial casting hinges is the mirror polishing , it make the hinge mirror-like with comfortable touch. There is not extra polishing while the hinges application is industrial site that the installed positions is inside which nobody can see the hinge from external view, however even the rough casting stainless hinge, the advantage is worthwhile for the users.

Another reason we recommend heavy duty stainless steel hinge is that the whole material is 100% SS304/316 which is much durable and reliable than the common steel material , these SS stainless steel hinge can last for many years under the proper maintaining .Especially under the hard environment outside , the common steel hinge can became rusty easily , even impact the usage and function of the hinge , thus you had replace the rusty hinges with more money and time , you will find it is really the waste of time and money to choose the common steel hinge at the beginning .

Our company focus in stainless steel industrial heavy duty hinges many years , please contact with us for more information and suggestion .


Industrial heavy duty stainless hinge


What is the difference between stamping hinges and casting hinges?

What is the difference between stamping hinges and casting hinges?

According to the production process, hinges can be divided into stamping hinges and casting hinges. As the name suggests, stamping can be understood as a manufacturing process that uses an external force to forcibly change the structure of an object. Made into the desired shape, i.e. “stamped”. This manufacturing process has a short cycle and is convenient to manufacture, and is relatively inexpensive in terms of manufacturing cost. In the hinges of door hinges, stampings are used in the place where do not bear too much stress. .

Obviously the stamped parts look a bit thin and due to structural issues more of the parts are exposed to air which leads to possible intrusion of sand inside.

What is the difference between stamping hinges and casting hinges?

Casting is one of the oldest technologies of mankind. The initial application of casting can simply be understood as pouring molten metal into a mold, cooling it and shaping it. Great progress, a certain precision, all indicators such as temperature and hardness have reached extremely high requirements and standards.

Due to the higher cost of the manufacturing process, cast hinges are often used on boats to prevent rust and maintain their luster for a long time.

What is the difference between stamping hinges and casting hinges?

What is Silica Sol Precision Casting ?

What is Silica Sol Precision Casting ?

Among all the precision casting technology ,one of the most common investment casting is Silica Sol casting( also known as lost wax casting).

     The main process : select suitable investment materials (such as paraffin) to make investment molds; repeat the steps of dipping refractory paint and sprinkling refractory sand on the investment mold, hardening the shell and drying; then Melt the internal investment mold to obtain a cavity; bake the mold shell to obtain sufficient strength and burn off the residual investment material; cast the required metal materials; solidify and cool, and clean the sand after shelling to obtain high precision The finished product. According to product needs that various treatment , including heat treatment, cold working and surface treatment

     Silca Sol Investment Casting, the products are precise, complex, close to the final shape of the part, and can be used directly without processing or with little processing to save product costs for customers,It is an advanced casting process that is close to forming.

What is Silica Sol Precision Casting ?

How to Deal With Stainless Steel Drain Vent

How to Deal With Stainless Steel Drain Vent

Dealing with stainless steel drain vents requires a multifaceted approach that considers functionality, design, and maintenance to ensure optimal performance and safety. Stainless steel, known for its durability and resistance to corrosion, is a preferred material in various settings, from yachts and ships to commercial and residential buildings.

How to Deal With Stainless Steel Drain Vent

When selecting a stainless steel drain, it’s crucial to consider the size and design compatibility with your existing drainage system. Different environments may have unique requirements for drain and vent systems. For example, in yachts and ships, the primary concern is discharging sewage gas, water, and oil efficiently. In contrast, in commercial settings like bakeries or food processing plants, the focus is on reducing bacteria and effective drainage​​.

Proper venting is critical in plumbing systems. Venting options like common vents, loop vents, and air-admittance valves (AAV) play vital roles in maintaining the system’s integrity and functionality. Common vents are suitable for fixtures that are close together, while loop vents are useful for island counters in kitchens where venting options are limited. AAVs are mechanical vents that help in situations where conventional venting is not feasible. They work by allowing air to enter the plumbing system when a partial vacuum is created, preventing the release of sewer gases​​.

In cases of blockages, it’s essential to address the issue promptly to prevent potential hazards and maintain cleanliness. Blockages can cause unpleasant smells, like the rotten egg scent often associated with sulfur bacteria or sewage contamination. Regular maintenance, such as using boiling water, white vinegar, or caustic soda, can help prevent and clear blockages. For more severe issues, such as cracked vents or significant clogs, professional assistance might be required​​.

Another aspect to consider is the structural integrity and design of the drainage system, particularly for large-scale installations like steel structures. Adequate venting and draining provisions are crucial to prevent issues such as air pocket formation, excess galvanizing buildup, and safety concerns. Balancing the need for sufficient venting and draining holes while maintaining the structural integrity of the steel member is a key consideration for designers and engineers​​.

In summary, dealing with stainless steel drain vents involves careful selection, proper installation, regular maintenance, and understanding the specific needs of your environment. It’s a balance of aesthetics, functionality, and safety, ensuring the system remains effective, hygienic, and visually appealing.

To learn more , please visit Stainless Steel Marine Grade Filler&Vent .

Why Stainless Steel Marine Hardware Became Popular?

Why Stainless Steel Marine Hardware Became Popular?

The growing popularity of stainless steel in marine hardware is rooted in its unique properties and advantages over other materials. Stainless steel stands out for its exceptional corrosion resistance, strength, and durability, which are critical factors in marine environments.

Corrosion Resistance: One of the key reasons for the popularity of stainless steel in marine applications is its unparalleled resistance to corrosion. This property is primarily due to the presence of chromium, which forms a protective chromium oxide layer on the surface, shielding the metal from oxidation and further corrosion. This makes stainless steel an ideal choice for use in harsh marine environments, where materials are constantly exposed to saltwater, high humidity, and temperature fluctuations​​​​​​.

Variety and Maintenance: There are several types of stainless steel used in marine applications, such as 304, 316, and 2205 duplex stainless steel. Each type offers a balance of affordability, corrosion resistance, and suitability for different environments. While stainless steel is known for its low maintenance needs, regular cleaning is recommended to maintain its appearance and prevent corrosion, ensuring longevity​​.

Applications in Marine Environments: The applications of stainless steel in marine settings are diverse. It is used in the construction of boats and ships, with components like handrails, hinges, propeller shafts, and railings made from stainless steel. In docks and marinas, stainless steel is used for structural and decorative applications, including support elements and aesthetic touches. Offshore platforms also heavily rely on stainless steel for their structural supports, catwalks, handrails, and other components, due to its strength and corrosion resistance​​​​.

Strength and Durability: Beyond its resistance to corrosion, stainless steel is known for its high strength and durability. It retains its mechanical properties even at high temperatures, resisting warping or deformation. This makes it suitable for heavy loads, vibrations, and the rigorous conditions of marine environments, ensuring the longevity and functionality of hardware​​​​.

Aesthetic Appeal: Stainless steel also offers a sleek, polished appearance, enhancing the aesthetic appeal of boats and marine structures. Its elegant and modern look adds to the overall attractiveness of marine hardware, combining functionality with style​​.

Challenges and Considerations: Despite its strengths, stainless steel is not completely immune to corrosion, particularly in marine environments. Pitting and crevice corrosion can occur over time, especially in contact with seawater. However, these risks are mitigated by selecting the appropriate grade of stainless steel and performing regular maintenance​​.

In conclusion, the rising popularity of stainless steel in marine hardware is a result of its corrosion resistance, strength, variety, and aesthetic appeal. Its ability to withstand the challenging conditions of marine environments, coupled with its low maintenance needs, makes it a preferred choice for a wide range of marine applications.

Why Stainless Steel Marine Hardware Became Popular?

Stainless Steel Boat Vent Provides Efficient Ventilation

Stainless Steel Boat Vent Provides Efficient Ventilation

  Installing a Stainless Steel Boat Vent is the good way to enhance the safety level of your boating experience . Having an open vent in a cabin or on the deck  is a safe and efficient way to keep the air fresh, clean and free from fumes and pollution as well . Boat stainless steel vent allows high volumes of air flow in and out of the vent, this makes air ventilation for ventilating engine rooms and other areas of the boat.

     The larger the boat you own, the larger the vent you will need. If you are purchasing a new boat, look for a vent that is made from a stainless steel material. It will provide added protection to the interior of the boat and make it safer for the passengers.

     One benefit of installing a boat ventilation system is that it will keep your cabin dry. Many times water is allowed to accumulate in a cabin during the warmer months. In order to keep the cabin dry, you can install a boat ventilation system that is designed to pull the excess water from the cabin into a system of tubing. This will provide the cabin with adequate drainage to help keep your cabin dry.

     Another benefit of having a boat ventilation system installed in your cabin is that it will keep debris from entering the cabin. Some of this debris is quite hazardous to the health of your passengers and can result in serious injury.

     Installing a boat vent will also help reduce the amount of heat that escapes from your cabin.  If you are operating a boat on the water, you should try to avoid sitting in your cabin for long periods of time. During the summer months, especially in warm weather, it is essential that you keep your cabin cool.

     A stainless steel boat vent is an inexpensive and easy to install which also protect your family and the environment from potentially harmful toxins and fumes, keep offering you with a comfortable place to relax too . It is really worthwhile for the health and safety of you and your family who dream the nice holiday time on the boat  .

Stainless Steel Boat Vent Provides Efficient Ventilation