Long Structural Timber Screws for Deep Timber Fixing

When your timber build requires extra depth, extra strength or extra reach, our long structural timber screws deliver. Built for demanding applications, these fixings give you the length you need for heavy-duty framing, decking, sleeper beds and large timber assemblies.
Our range covers lengths from 150 mm through 180 mm, 200 mm, 225 mm, 250 mm and up to 300 mm timber screws so you can choose precisely for your job.

• Deeper thread engagement means stronger hold in thick timber sections or when joining multiple timbers.
• Long screws reduce need for multiple fixings or bolts.
• Ideal for outdoor builds where pull-out and shear loads are higher: decking joists, large pergolas, heavy sleeper walls.
• Our XR Black Structural Timber Screws are hardened steel with a 2000-hour salt spray tested coating so they’re built to last in internal and external environments.

• Lengths available: 150 mm, 180 mm, 200 mm, 225 mm, 250 mm, 300 mm.
• Head style options: double countersunk flat head (for a smooth finish) and hex washer head (for high-torque drive).
• Supplied in boxed pack sizes and bulk cartons to suit single large builds or trade-scale projects.
• Compatible with standard Torx and impact driver systems for fast installation and minimal cam-out.

150 mm – 180 mm

• Ideal for thick frame timbers up to 100 mm depth
• Suitable for internal joins or smaller outdoor structures

200 mm – 225 mm

• Best for joist-to-beam connections or timber over 100 mm thick
• Provides extra hold for heavier loads and moderate exposure

250 mm – 300 mm

• Designed for large sleeper walls, decking foundations, and deep timber assemblies
• Ensures strong engagement where standard screws are insufficient

• Match screw length to timber thickness plus overlap
• Consider exposure and structural load for outdoor builds
• Flat head for flush finish; hex washer head for high-torque driving

• Heavy timber frame construction and internal load-bearing joins.
• Large outdoor structures: decks, pergolas, timber cladding systems.
• Sleeper walls and landscaping where structural timber volumes are large.
• Any instance where standard 100 mm or 120 mm screws are insufficient for safe structural engagement.

Available in both boxed and carton quantities. Stock up for large-scale jobs and ensure you have consistent, high-performance fixings site-wide. Trade accounts are offered with volume discounts.