► Macsim | Coach Screws

High-Torque Timber Fixing for Structural Outdoor Builds

Heavy structural timber connections require fastening that penetrates deep, resists shear stress & holds firm under load. Lightweight screws lack the diameter & thread strength needed for serious framing, landscaping or agricultural construction.

Purpose-built for demanding timber-to-timber applications, this Macsim Coach Screws collection delivers large-diameter hex head fasteners engineered for structural carpentry, fencing, retaining walls, pergolas & shed framing across Australian conditions. The aggressive coarse thread draws timber members tightly together while allowing high torque installation with spanners or impact drivers.

On structural projects coach screws are frequently specified alongside Structural Fasteners & Bolts to maintain rated load performance across hybrid assemblies. Where heavy bracing systems are involved installers may coordinate with Hex Bolts for reinforced timber-to-steel transitions.

During beam alignment stages accurate placement is typically confirmed using Measuring & Layout Tools before final tightening begins. Across estate developments & rural builds bulk fastening stock is shifted between work areas using Material Handling Equipment to maintain workflow efficiency.

When posts anchor into concrete piers compatible hardware from Anchor Bolts may be integrated for foundational stability. Visible structural junctions can align with protective hardware such as Dome Nuts where thread ends require coverage.

In exposed deck or pergola construction moisture management systems sourced through Roofing Materials & Sealants are often applied to improve long-term durability. Broader build programs may intersect with materials supplied via Drywall & Plastering Supplies during staged residential development.

Outdoor lighting brackets mounted to timber frames can coordinate with products from Site Lighting & Electrical Supplies during integrated installations.

Diameter strength, deep thread bite & corrosion protection define the engineering reliability of this coach screw range.

What’s in This Collection:

► Macsim Coach Screws hex head structural fasteners
‣ Delivers high clamp force for heavy timber joins

► Large diameter coarse thread profile
‣ Maximizes pull-out resistance in hardwood & treated pine

► Zinc-coated corrosion-resistant variants
‣ Suitable for fencing, decking & exterior builds

► Extended length configurations
‣ Supports thick beam & post connections

► Bulk contractor packaging
 ‣ Designed for rural, commercial & framing projects