Heavy-Duty Exterior Fixings for Timber Frames and Landscaping TIMCO Timber Frame Construction & Landscaping Screws – Hex – Exterior – Green Organic TIMCO Hex Head Exterior Screws are engineered for heavy-duty timber frame construction, landscaping, and outdoor joinery. The hex washer head delivers high torque transfer for secure fastening, even in dense or treated timbers, while the coarse thread ensures strong holding power. The sharp point allows quick starting without pre-drilling in most softwoods. Finished with a green organic coating for enhanced corrosion resistance, these screws are ideal for long-term exterior use. Key Features & Benefits Hex Washer Head: Enables high torque driving for maximum clamping force. Green Organic Coating: Provides exterior-grade corrosion resistance for outdoor environments. Sharp Point: Quick penetration into timber without pre-drilling in most cases. Coarse Thread: Delivers high pull-out strength in softwood, hardwood, and treated timber. Versatile Use: Ideal for decking frames, fencing, garden structures, and timber framing. Application Areas Timber frame construction Decking subframes and joists Garden buildings and pergolas Fencing and gate installations Landscaping projects Technical Specifications Head Type: Hex washer Drive Type: Spanner or socket Thread Type: Coarse single thread Point: Sharp point Material: Hardened carbon steel Finish: Green organic exterior coating Use: Exterior applications, suitable for treated timber