Contact us to order: 08448 50 40 50
Contact us to order: 08448 50 40 50


One Way Ties

The Grayson One Way Tie (OWT) offers versatile compatibility when used alongside our range of sliding anchors, providing a reliable solution for masonry connections and structural support systems. Featuring a 3-holed safety end for secure bonding into the mortar, these ties ensure a stable and durable connection, enhancing the overall strength and integrity of the structure. With the ability to slide up and down the stem, the ties offer enhanced adjustability, accommodating variations in wall construction and movement over time.

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Comprehensive Compatibility: The One Way Tie (OWT) presents an exceptional level of compatibility, seamlessly integrating with our diverse range of sliding anchors. This broad compatibility ensures that the OWT can be effectively utilized across a wide array of construction scenarios, offering flexibility and versatility in application. Whether used in conjunction with sliding anchors for masonry connections or other structural elements, the OWT provides a reliable solution for various construction needs.

Secure and Reliable Bonding: Equipped with a 3-holed safety end designed for bonding into the mortar, the OWT ensures a secure and stable connection. This robust bonding mechanism enhances the overall strength and integrity of the structure, effectively mitigating the risk of displacement or failure, even under significant loads or external pressures. Contractors can trust in the durability and reliability of the OWT to provide long-lasting structural support.

Enhanced Adjustability and Adaptability: Featuring a slotted design that allows for vertical movement along the stem, the OWT offers enhanced flexibility and adaptability. This unique design feature enables the ties to slide up and down the stem, accommodating variations in wall construction, settlement, or movement over time. As a result, the OWT can effectively adapt to changes in the structural environment, ensuring continued stability and performance throughout the lifespan of the building.

Tailored Length Options: With a variety of lengths available, the OWT offers a high degree of customization to meet specific project requirements. Contractors can select the appropriate tie length based on the thickness and specifications of the walls, ensuring a precise fit and optimal performance. This tailored approach minimizes waste, maximizes efficiency, and streamlines the construction process, ultimately leading to cost savings and improved project outcomes.

Streamlined Measurement Process: The OWT simplifies the measurement process by providing measurements from the center of the slot. This standardized measurement approach enhances accuracy and precision during installation, reducing the likelihood of errors or miscalculations. Contractors can rely on the consistent and reliable measurement standards of the OWT to achieve seamless and efficient installation, saving time and labor costs.

In summary, the One Way Tie (OWT) offers a comprehensive array of benefits, including comprehensive compatibility, secure and reliable bonding, enhanced adjustability and adaptability, tailored length options, and a streamlined measurement process. As a crucial component in masonry connections and structural support systems, the OWT plays a vital role in ensuring the stability, durability, and integrity of construction projects.

SizePart NumbersDescriptionQuantity
100OWT/100100mm One Way Sliding TieTo Suit Anchor Stem
125OWT/125125mm One Way Sliding TieTo Suit Anchor Stem
150OWT/150150mm One Way Sliding TieTo Suit Anchor Stem
175OWT/175175mm One Way Sliding TieTo Suit Anchor Stem
200OWT/200200mm One Way Sliding TieTo Suit Anchor Stem
Size 100
Part Numbers OWT/100
Description 100mm One Way Sliding TieTo Suit Anchor Stem
Size 125
Part Numbers OWT/125
Description 125mm One Way Sliding TieTo Suit Anchor Stem
Size 150
Part Numbers OWT/150
Description 150mm One Way Sliding TieTo Suit Anchor Stem
Size 175
Part Numbers OWT/175
Description 175mm One Way Sliding TieTo Suit Anchor Stem
Size 200
Part Numbers OWT/200
Description 200mm One Way Sliding TieTo Suit Anchor Stem
Contact us to order: 08448 50 40 50

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Unit 6 Edgar Ind Estate, Comber Road, Carryduff, Northern Ireland
02890 81 55 66


Unit 3 Invergyle Court, Ibrox Business Park, Glasgow
G51 2JR
0141 465 19 00


Magna 34 Industrial Park, Temple Road, Rotherham
S60 1FG
01709 786 100


Lombard House, 8 Lombard Road, London
SW19 3TZ
020 3576 3910

Grayson London is solely a Technical and Specification location.

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Andy Allsobrook

Regional Manager

Andy is not just our Regional Manager; he is a dedicated family man, an active sports enthusiast, and brings nearly 40 years of construction industry experience to the team.  

Away from the office, Andy still plays cricket at the grand age of 58, showing the young ones what he’s made of when playing on the same team as his son. He also avidly supports Arsenal FC.

Andy also cherishes family time with his childhood sweetheart, wife of 35 years, their three adult children, and grandchildren.

An ex-retained fireman who served for six years in the 1980s, Andy’s dedication extends beyond work, showcasing his commitment to community and family.

Katie Wills

Regional Manager

Meet Katie Wills, our vibrant Regional Manager who finds joy in spending time with her family, keeping fit, and taking part in fun-filled challenges.

With an energetic and outgoing personality, Katie thrives on trying new things, even venturing into coasteering in 2023 with her son.

She’s not afraid to push boundaries, whether climbing mountains (previously done Kilimanjaro) for charity or conquering marathons and skydives. I wonder what challenge is next on the list?

When not on an adventure, Katie cherishes time with loved ones, embodying a sociable spirit that brings warmth to our team. 

Madelaine Pieterse

Regional Manager

Madelaine has always worked in construction so she knows her way around the industry, but she will often get lost in her own town.

Born in South Africa, Madelaine swapped the stunning sunshine in Cape Town for the cloudy charm of Belfast. We’re not sure what made her make this decision, starting a new life in Ireland isn’t for the faint-hearted.

Madelaine is mother to two sons 22 and 25 who she loves to spend her time with, watching them mature into handsome men.

Grayson GB - Jim Martin

Jim Martin

Regional Manager

Our regional manager Jim likes to pretend that he is ‘pure Scottish’ but secretly he’s half English. Now, we ‘dinnae ken’ why he’s proud of his Scottish ancestry, but each to their own!

Despite his Scottish routes, Jim is great at his job, there’s no denying that.

You won’t often see Jim cracking up in the office, but we suppose there isn’t a lot to laugh at up in Scotland so he’s probably out of practice.

Helen Gibson

Regional Manager

Helen spends most of her time playing with her orchestra. She claims that her biggest passion is music, but then again, her instrument of choice is the flute.

Playing her flute isn’t the only music that Helen makes, she is the proud owner of a big laugh that bounces off every corner of the office. More often than not, you will hear her laugh before you see her!

Helen’s a single girl, and enjoys meeting up with friends for nights out at the cinema, eating out and keeping the local Brew Dog in business!! She says she doesn’t drink much…. we know different!

Kevin Jagg

Operations Director

Kevin has been in the construction game for a long time, over 30 years! He worked at Grayson & Co back in 1993 and has unfortunately known Tony throughout this time. Now he’s decided to join the senior leadership after knowing Clare and Chris for 18 years.

At the weekend, Kevin enjoys meeting friends for a beer or 3 and loves to travel all over the world on cruises.

Clare Spivey

Sales & Marketing Director

Although she won’t admit it, Clare has been in the game a long time.

Supplying power tools and fixings was her first job in the construction industry. Due to this she has the ability to spot a tool a mile off.

Clare must have been a magician in a former life as her ability to spin plates is quite something. With a husband who works away, 2 kids with a shed load of activities, her taxi and cheerleading skills are on hand most evenings and weekends.

Clare and her family enjoy escaping to Filey, where they enjoy long walks on the beach and eating fish and chips. Clare loves her holiday home as there is absolutely no phone signal.

Henry Bareham

Specification Director

Henry’s takes great pride in his family, a wife to whom he’s absurdly lucky to have been married to for over 30 years. And two children in their 20’s, who now talk to him having managed their way through the teenage years.

Having left his pretend job of 15 years as a fully-fledged P.G.A qualified Golf Professional, Henry has managed his last 20 years + in construction within manufacturing, technical specification, and sub-contracting.

He spends his time away from work trying to re-kindle the talent he had a long time ago on the golf course, whilst also managing a keen interest in the gym, trying to maintain the muscle to body fat ratio in a good way.

Chris Bentley

Regional Manager

Chris’s claim to fame is working with both Tony and Clare for over 24 years, and still being alive to tell the tale. He’s been working for Grayson since day one!

Outside of the office, Chris has a passion for music and plays in a Brass Band. He’s performed at the Albert Hall, and recently performed at Soccer Aid for Unicef in front of 70,000 supporters at Old Trafford.

If he’s not playing music or working, Chris does also like to watch Barnsley FC which unfortunately, doesn’t put a smile on his face too often.

Tony Higson ​

CEO & Managing Director ​

Having two teenage daughters, Tony enjoys spending much of this time working away.

He also has an old wife and new a Doberman, therefore the only time people value him is in the office or on site.

As a Sheffield Wednesday fan, the poor fella doesn’t get any joy there either.

Tony has been the Managing Director of Grayson for nearly twenty-years. For all of this time he was also moonlighting for ACS. Again, holding down two jobs was the perfect excuse for not going home.  

In a previous life Tony used to play solders, however he has very few war stories due to the fact his job was to the fix equipment real soldiers used.

Tony’s biggest fear is retirement.