TruDesign Load Bearing Collar Composite Small, Medium, Large

$20.42$34.50 inc GST

or 4 payments of $5.11 with Wizit learn more

Tru Design Load Bearing Collar Composite Small 90856 Medium 90854 Large 90920

Pay by  Add to cart.

Size SKU Price Cart Stock
$20.42 inc GST

In Stock

$22.00 inc GST

In stock

$34.50 inc GST

In Stock

SKU: 138637V Category:

UPC: 9421007123287

Condition:  New

In stock



TruDesign Load Bearing Collar Composite Small, Medium, Large

Tru Design® Load Bearing Collars are designed for use with Tru Design® Skin Fittings and Ball Valves. A Load Bearing Collar will allow an assembly of a Skin Fitting – Ball Valve – Tail to withstand a 500 lb. (227 kg) load applied to the Tail (inboard end), for a minimum of 30 seconds – Complying with North American ABYC H-27 standards.
Compositeliance to this standard is mandatory for all vessels sold into the United States.
These are available in three sizes.


• Award-winning DAME Category Winner 2015 – Marina Equipment, Boatyard Equipment, and Boat Construction Tools & Materials – Marine Equipment Tradeshow (METS) 2015, HISWA ‘Product of the Year’ Nominee 2016 – HISWA Amsterdam Boat Show 2016
• ABYC H-27 compliance for ½”, ¾”, 1”, 1¼”, 1½”, & 2” size assemblies – Strength and peace-of-mind. Rates assemblies to withstand a static load of 500 lb (227 kg) at the Tail end for a minimum of 30 seconds
• Compact footprint Designed to work within existing space confinements (is no larger in diameter than the Ball Valve + handle)
• No additional bolts or fasteners through or on to the hull – Unlike flanged seacocks, the TruDesign® Load Bearing Collars work without needing to be fastened to the hull
• Ability to retrofit to existing Skin Fitting – Ball Valve assemblies – Can make any existing TruDesign® Skin Fitting – Ball Valve – Tail assembly compliant to ABYC H-27 simply by removing the Ball Valve, placing the Collar onto the Ball Valve, trimming the Skin Fitting’s thread length (only if necessary), then refitting the Collar & Ball Valve back on to the Skin Fitting
• Compatible with all hull materials across a range of thicknesses – Can be used on aluminium, steel, wood, GRP or composite hulls. Skin Fittings may need to be reduced in length for optimum strength
• Shrouded protection Protects vulnerable areas, such as the exposed thread of the Skin Fitting, from being inadvertently struck by loose items in the hull
• Fool-proof assembly If not installed correctly (e.g. if the Skin Fitting thread has not been reduced to a sufficient length) the Collar will be loose and will be able to move up and down the Ball Valve. When installed correctly, the Collar will be snug and not move
• Manufactured from a glass-reinforced nylon composite – High strength and light weight
• Immune to corrosion and electrolysis Long life with no concerns over decreased performance due to corrosion. No bonding required

Technical Information:

The following tables list the minimum, optimal and maximum hull thickness required for each of the different sizes and types of Skin Fitting (Dome headed or Recessed) to comply with ABYC H-27 standards.

Important Notes:

• If hull thickness is less than the ‘min.’ value listed, a spacer/packer should be used on the inside of the hull underneath the Skin Fitting Washer and Nut. This should also apply if installed in a position where there is excessive curvature on the hull interior.
• The thread length of a Skin Fitting can be shortened by cutting with a hacksaw or similar tool. Measure the remaining thread length from the top of the Skin Fitting Nut as pictured in the table’s right-hand column and ensure the thread length after cutting falls between the min and MAX values. Remove any ragged internal edges with a small file.
• At the ‘Optimal’ hull thickness, there will be full thread engagement between the Skin Fitting and Ball Valve. Reducing the Skin Fitting’s thread length will not be required.
• If hull thickness exceeds the ‘MAX.’ value listed, there will be insufficient thread engagement between the Skin Fitting and Ball Valve in order to achieve ABYC H-27 compliance. If possible, use a larger sized TruDesign® Skin Fitting or consider using a TruDesign® Recessed Skin Fitting.


Code Size Trudesign part number Image
138637 Small: 1/2″, 3/4″, 1″ 90856 138637 Trudesign Load bearing Collar Small 90856
138638 Medium: 1¼” or 1½” 90857 138638 Trudesign Load bearing Collar Medium 90857
138639 Large: 2″ 90920 138639 Trudesign Load bearing Collar Large 90920
Additional information

Additional information








Price does not include shipping. Product will be shipped via Toll / Australia Post / Courier. Product can also be collected.


, ,


Tru Design, Trudesign

Shipping & Delivery
Prices do not include shipping.

Shipping quotes can be obtained by adding products to the cart and inputting your postcode.

$11.60 Brisbane Express - Postcodes 4000-4209, 4270-4299, 4500-4549, 9000-9725 up to 20kg

Boat Hut uses Toll Ipec Priority Service, Australia Post Express Post and Courier's Please. Boat Hut uses Australia Post or DHL International Service for New Zealand deliveries.

Free Local Pickup – by prior arrangement. We don’t always have all the products at our Acacia Ridge premises, but they may be at our warehouse. Warehouse collections can be arranged by prior arrangement - please contact us to discuss.

Order Tracking provided on all orders.

All orders will be processed within 2 business days - except backordered items. If we are unable to meet this timeframe we will contact you to provide details and options. If we are unable to ship your order within 3 business days we will offer you a refund in full or the option to wait for the goods to come into stock.

We are happy to ship to any country - and will provide a quote upon request. All overseas orders must be paid for via Paypal before your order is shipped.

Above pricing refers to regular size items that will fit in courier satchels - oversized items will require a freight quote.

Boat Hut reserves the right to refuse to fulfil an order that has the incorrect postage / freight collected at the time of sale. We will work with you to rectify the matter, if we are unable to come to a resolution then we will provide a refund in full.

90856, 90857, 90920

Stock Availability
Boat Hut has approx 100,000 product lines coming from a number of warehouses across Australia. Not all of these products are available for a walk-in purchase at Acacia Ridge - most times you will need to make arrangments in advance. Please feel free to contact us to confirm our stock at Acacia Ridge or in our warehouses. We try our best to keep the website up to date with current stock holdings. We will accept back orders on out of stock items. All products are genuine & come with manufacturer's warranties.