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Board Passage Screw Connection Boat Breakthrough Screw Connection Breakthrough - 3/8 Inch 58 mm Connection Universal Boat Feedthrough with Lock Nut Marine Vent Hose Connection for Boats, Yachts

$42.79

  • Marine Grade & Material The on-board passage screw connection is made of high-quality 316 stainless steel, which is particularly rust-proof and salt water resistant. Ideal for maritime use on boats and yachts as it is extremely durable and resistant to corrosion. The on-board pass-through component can withstand harsh weather conditions without sacrificing quality.
  • Easy installation. This on-board screw connection can be mounted without drilling or welding. The included lock nut allows for quick and secure attachment. The ribbed surface provides better grip when tightening with a wrench.
  • Precise fit and dimensions. The on-board passage has a passage of 3/8 inch (58 mm) and is suitable for hoses and pipes in marine and boat technology. The smooth, burr-free surface prevents damage to hoses or hands.
  • Heavy duty construction for heavy duty use. Thanks to the reinforced side walls, the on-board passage screw connection can withstand high pressure and is flexible enough for hose bends. Ideal for venting and sewage systems on yachts and work boats.
  • Universal application. This on-board pass-through solution is versatile - whether for ventilation, drain or as a feedthrough for cables and wires. Perfect for boat owners, shipyards and maritime applications that require a reliable and durable solution.

Size:
58mm
Color:
metal
Manufacturer:
Kunxing
Part Number:
D8P8H51
Material Type:
316 stainless steel
Isin:
IDMX7XUK3K4Z

$42.79

In Stock

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Board Passage Screw Connection Boat Breakthrough Screw Connection Breakthrough - 3/8 Inch 58 mm Connection Universal Boat Feedthrough with Lock Nut Marine Vent Hose Connection for Boats, Yachts

Board Passage Screw Connection Boat Breakthrough Screw Connection Breakthroug...

$42.79

  • Marine Grade & Material The on-board passage screw connection is made of high-quality 316 stainless steel, which is particularly rust-proof and salt water resistant. Ideal for maritime use on boats and yachts as it is extremely durable and resistant to corrosion. The on-board pass-through component can withstand harsh weather conditions without sacrificing quality.
  • Easy installation. This on-board screw connection can be mounted without drilling or welding. The included lock nut allows for quick and secure attachment. The ribbed surface provides better grip when tightening with a wrench.
  • Precise fit and dimensions. The on-board passage has a passage of 3/8 inch (58 mm) and is suitable for hoses and pipes in marine and boat technology. The smooth, burr-free surface prevents damage to hoses or hands.
  • Heavy duty construction for heavy duty use. Thanks to the reinforced side walls, the on-board passage screw connection can withstand high pressure and is flexible enough for hose bends. Ideal for venting and sewage systems on yachts and work boats.
  • Universal application. This on-board pass-through solution is versatile - whether for ventilation, drain or as a feedthrough for cables and wires. Perfect for boat owners, shipyards and maritime applications that require a reliable and durable solution.

Size:
58mm
Color:
metal
Manufacturer:
Kunxing
Part Number:
D8P8H51
Material Type:
316 stainless steel
Isin:
IDMX7XUK3K4Z

Professional on-board passage screw connection made of 316 stainless steel - the ultimate solution for maritime applications

The on-board screw connection is the perfect choice for demanding boat and yacht owners, shipyards and maritime specialist companies. Made from high quality 316 stainless steel, this on-board passage is characterised by its exceptional resistance to corrosion, salt water and extreme weather conditions. Thanks to the highly polished surface and precise workmanship, it offers not only optical elegance, but also maximum functionality.

Why this on-board passage is different from others:

Marine grade material: the on-board passage screw connection is made of 316 stainless steel, which has a significantly higher resistance to salt water corrosion compared to 304 stainless steel. This makes it ideal for continuous use on boats, yachts and in the maritime industry.

Optimal dimensions: with a passage of 3/8 inch (58 mm), the on-board passage fits perfectly with standard hoses and pipes. The smooth, burr-free surface protects both hose materials and your hands during installation.

Easy and safe installation: the included lock nut allows for quick and stable attachment - without drilling or welding. The ribbed surface provides extra grip when tightening with a wrench.

Robust construction for maximum load-bearing capacity

Thanks to the reinforced side walls, the on-board passage screw connection can withstand high pressure and is ideal for ventilation, sewage or cooling water systems. The flexible, yet sturdy construction allows easy hose bends without losing the connection.

Universal use in the maritime world.

Whether as an on-board passage for ventilation systems, drain connections or as a secure feedthrough for cables and cables - this screw connection is versatile. It is suitable for:

Leisure boats & yachts - reliable performance on long trips

Work & fishing boats - robust enough for everyday use

Marine & Industrial Applications - Where Precision and Durability Count

Processing Time

  • We process and ship orders Monday through Friday, excluding holidays.
  • Most orders are processed within 1–3 business days, depending on product availability.
  • Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.

Shipping Coverage

We currently ship to addresses within the United States only.

Products may ship from:

  • Our U.S. warehouses, or
  • Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).

Each product page clearly displays the “Ships From” location before checkout.


Shipping Methods & Estimated Delivery

Shipping Method Estimated Delivery Cost
Free Shipping (US) 5–10 business days Free, available on eligible items
Standard Shipping (US to US by Item) 5–10 business days $5.95 for the first item, $3.00 each additional
Standard Shipping (From US Warehouse by Weight) 3–7 business days Starts at $5.95, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb.
Extended Delivery (Ships from Overseas Warehouse) 10–20 business days $14.99 for the first item, $2.00 each additional

Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.

Free Shipping

We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout. 


Carriers

We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.


Import Duties & Taxes

All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.


Tracking & Notifications

Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.

You can track your shipment anytime using the Track Your Order page on our website.


Order Changes & Cancellations

If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.

Contact: support@ibspot.com


Item Not Received

If your tracking number shows “Delivered” but you haven’t received your package:

  1. Check with your local USPS or UPS office.
  2. Confirm that the shipping address provided was correct.
  3. If the issue remains unresolved, contact support@ibspot.com for assistance.

Damaged or Lost Parcels

If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.


Customer Support

For any questions about shipping, tracking, or delivery, our customer support team is here to help.

Email: support@ibspot.com

We’re always happy to help.

Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.


Order Cancellation Policy

Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.

How to Request a Cancellation

You can contact us through:

Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.


Return Policy

We accept returns for most items within 30 days of delivery for a full refund.

To be eligible for a return:

  • The item must be unused, in the same condition as received, and in its original packaging.
  • A tracking number must be provided to confirm the return shipment.

Non-Returnable Items

Certain products cannot be returned, including:

  • Perishable goods (for example, food, flowers, newspapers, magazines)
  • Intimate or sanitary goods
  • Hazardous materials or flammable liquids/gases
  • Gift cards
  • Downloadable software
  • Some health and personal care items

Partial Refunds (If Applicable)

Partial refunds may be granted in specific situations, such as:

  • Books with obvious signs of use
  • Opened CDs, DVDs, software, or vinyl records
  • Items not in their original condition, damaged, or missing parts not due to our error
  • Items returned more than 30 days after delivery

How to Return an Item

To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.


Shipping Cost for Returns

Please contact us before returning any item.

We may provide a return shipping label for your return. If the return is due to our error, such as receiving the wrong item, a damaged item, or a defective product, we will cover the return shipping cost.

If the return is due to the customer’s reason, such as ordering the wrong item, changing your mind, or no longer needing the item, the original shipping fee and the return label fee will be deducted from your refund amount.

If a return is sent back without prior contact or without using our provided label, we cannot be held responsible for any return shipping costs or delivery issues.

For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.


Refund Processing

Once your return is received and inspected:

  • In-store returns are refunded to the original form of payment or issued as a gift card.
  • Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.

Please allow:

  • 5–7 business days for the return to reach our Returns Center.
  • An additional 3–10 business days for your bank to post the refund to your account.

Damages, Issues & Claims

Please inspect your order immediately upon receipt.
If you receive a defective, damaged, or incorrect item, contact us right away at support@ibspot.com.
We’ll evaluate the issue promptly and make it right.

Product Claims

Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.


Exchanges

We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.


Return Address

IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States


Customer Support

Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.

Email: support@ibspot.com
Contact Form: Contact Us page

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