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FREE Delivery Over £100
15,000+ Products
30 Day Returns
Family Owned & Run
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Looking for strong, reliable structural connectors and fixings for your construction projects? Simpson Strong-Tie offers high-performance joist hangers, angle brackets, straps, anchors, and screws—all engineered for safety, durability, and ease of installation. Manufactured in the UK and rigorously tested to meet British and European standards, these products are ideal for timber framing, decking, masonry, and steel connections. With expert support, fast delivery, and innovative solutions like Quik Drive® screw systems, Simpson Strong-Tie provides trusted, code-compliant products for builders, contractors, and engineers across residential and commercial projects.
The Simpson Strong-Tie SDW Structural Wood Screw is a high-strength, 8.0mm diameter fastener engineered for securely joining multi-ply wood members, including plated trusses, engineered timber products, and solid-sawn timber. CE marked to EN14592, it ensures compliance with European structural standards.
Key Features:
Optimized Lengths: Available in sizes tailored for fastening 2, 3, and 4-ply trusses or 45mm engineered timber, such as Laminated Veneer Lumber (LVL).
No Pre-Drilling Required: Designed for easy installation without the need for pre-drilling, enhancing on-site efficiency.
Durable Finish: Constructed from heat-treated carbon steel with a black E-coat™ finish, providing corrosion resistance suitable for indoor applications (Service Class 2).
Comprehensive Packaging: Each box includes a driver bit, ensuring readiness for immediate use.
Ideal for structural applications requiring robust wood-to-wood connections, the SDW Structural Wood Screw offers reliable performance and ease of installation for professionals in the construction industry.
1. Trusted Structural Performance
With over 60 years of experience, Simpson Strong-Tie offers more than 1,000 rigorously tested products, including joist hangers, angle brackets, and restraint straps. Their UKAS-accredited testing facility ensures that products meet high standards for strength and reliability, providing builders with confidence in load-bearing applications.
2. British Manufacturing and Rapid Delivery
Operating from a substantial facility in Tamworth, Staffordshire, the company produces up to 60 tonnes of steel products weekly. Their membership in the 'Made in Britain' initiative underscores their commitment to local manufacturing. With three UK distribution centres, they offer swift delivery to both stores and construction sites.
3. Comprehensive Technical Support
Simpson Strong-Tie provides direct access to engineers for technical advice, ensuring expert guidance on product selection and installation. Their extensive online resources include CAD/BIM libraries, design software, and training videos, supporting professionals throughout the construction process.
4. Innovative and Ergonomic Solutions
The company offers advanced tools like the Quik Drive® collated screw system, designed for efficiency and ease of use in various applications, such as decking and drywall installations. This system minimizes physical strain and increases productivity on job sites.
5. Commitment to Quality and Sustainability
Simpson Strong-Tie adheres to international quality standards, including ISO 9001 for quality management and ISO 14001 for environmental management. Their products are CE marked, ensuring compliance with European safety and performance standards.
In summary, Simpson Strong-Tie combines decades of expertise, robust UK manufacturing, and a customer-centric approach to deliver reliable structural solutions for the construction industry.
Specifics
Length (I): 89mm
Diameter (D): 8mm
Material: Heat treated carbon steel - black E-coat™
Simpson part number: SDWS22312DBB-R50
Orders over £100 will qualify for free 2-3 working day delivery*. Orders under £100 will be subject to a carriage charge - please see below for our delivery options.
We offer a number of different nationwide* services. Please see below for our delivery options.
*Please note that orders to the Isle of Wight, the Isle of Man, the Scottish Isles, the Scottish Highlands, Northern Ireland and the Channel Isles will incur a carriage surcharge.
*Long items greater than or equal to 1.5M in length will be subject to a length surcharge of £12. This surcharge is per shipment, and not per item.
Orders placed before 15:00 with next working day/timed services, Saturday & Royal Mail Special Delivery services will be dispatched the same day (Monday to Friday). Orders placed with any of these services after 15:00 will not be dispatched until the next working day. Orders placed on Saturdays, Sundays or bank holidays will be dispatched on the next working day. Next working day means Monday - Friday, excluding bank holidays. Orders placed with any of the aforementioned services will not be delivered on a Saturday or Sunday. For Saturday deliveries, select 'Saturday Delivery' in the basket.
We aim to despatch all orders with standard services within 2 working days, as long as all of the items are in stock.
We offer the following delivery services:
^Orders placed before 15:00 with next working day/timed services, Saturday & Royal Mail Special Delivery services will be dispatched the same day (Monday to Friday). Orders placed after 15:00 will not be dispatched until the next working day. Orders placed on Saturdays, Sundays or bank holidays will be dispatched on the next working day. Next working day means Monday - Friday, excluding bank holidays. Orders placed with any of the aforementioned services will not be delivered on a Saturday or Sunday. For Saturday deliveries, select 'Saturday Delivery' in the basket.
^^Royal Mail services are only offered to basket weights up to and including 2 kilos only. The 1pm & 9am Special Delivery times are for UK mainland only and will vary for Northern Ireland, Highlands & Islands. Please view the Royal Mail website for full details.
Please note that orders to the Isle of Wight, the Isle of Man, the Scottish Isles, the Scottish Highlands, Northern Ireland and the Channel Isles will incur a carriage surcharge.
Long items greater than or equal to 1.5M in length will be subject to a length surcharge of £12. This surcharge is per shipment, and not per item.
All orders are available for collection from our stores. Collection orders will normally be ready within 2 hours of the order being placed, as long as all items are in stock at the time of order.
TC Fixings offers a free van delivery service to Saffron Walden and the surrounding villages.
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Each£45.58
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Each£12.61
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Each£23.04
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Each£13.70
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Each£24.33
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Each£18.79
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Quantity WarningPlease be aware that this product only sold in multiples of 0.
8.0x89mm
Pack of 12
SKU: SIMSDW22312-R12DBB
6 In Stock
£15.84
EACH
8.0x89mm
Pack of 50
SKU: SIMSDW22312-R50DBB
3 In Stock
£46.08
EACH
