Skip to product information
1 of 4

Bronze & Brass Fasteners Pty. Ltd.

131055 - Silicon Bronze Wood Screw Slotted Flat Head- 20g x 56mm

131055 - Silicon Bronze Wood Screw Slotted Flat Head- 20g x 56mm

Regular price $3.91 AUD
Regular price Sale price $3.91 AUD
Sale Sold out

GST Excluded - added at checkout

Quantity discounts are added automatically in cart.

A traditional full bodied cut thread countersunk or flat head woodscrew made from fastener grade 97% copper silicon bronze with a traditional slot drive - designed to finish flush with the surface of your timber/hardware.

With deep well cut slots, these screws can be power driven with the correct size driver tip.

Silicon bronze has a rose gold patina when new or polished.  If allowed to age, it will develop a red hued brown tone, akin to Florentine bronze, and is the recommended option for fastening Florentine bronze hardware.

Screw Size Chart - Gauge: 20g  

Head Diameter: 15.2mm
Head Height: 5.3mm
Countersink Angle: 82°
Shank Diameter: (major) 8mm
Shank Diameter: (minor) 5.3mm
Finish: Mill Finish
Material: Solid Silicon Bronze
Major Pilot Hole: 8mm
Pilot Hole Hardwood: 5.5mm
Pilot Hole Softwood: 5mm
Driver Size 9/16"
Length: 57mm


Wooden Boats
Exterior use
Fine Woodwork
Ultimate Corrosion Resistance
Inert in caustic timbers
Suitable for harsh environments
Heritage Restoration
Florentine Bronze fittings
Western Red Cedar Cladding
Timber Shingles
Coastal Dwellings & Beach houses
Cabinet Making
Building & Construction
Door Hinges
Copper Roofs
Docks, Wharfs & Boardwalks




Manufactured for Bronze and Brass Fasteners Pty Ltd by Yushung Metal Products Co., Ltd.

View full details

All images are of the product type, not the specific size. Colours may vary depending on your display, and on the age of the product.