45° Wedge Washer

Cost-reducing Solution for Steel to Wood Connections
  • Code Approval
  • ICC * with the use of ASSY Fully Threaded fasteners
  • Connection Type
  • Wood/Steel
  • Manufacturer
  • SWG

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Countersunk Head

Fast Installation

Cost Effective

Product Description

Product Description

The 45° wedge washer with a pre-drill jig is a cost-reducing solution for steel to wood connections. The wedge washer is inserted into a simple, punched or machined hole with an elliptical shape.


  • Designed for Countersunk head fasteners

The minimum required steel plate thickness is reduced to ¼” while maintaining connection capacities. The possibility of reducing the steel plate thickness in combination with simple hole fabrication and fastener installation creates new opportunities for innovative design professionals in timber engineering.

CAD Drawings

CAD Drawings

Product45° Wedge Washer SizesFile Extension
45° Wedge Washer5/16"8
45° Wedge Washer3/8"10
45° Wedge Washer1/2"12
All Above
Design Guides

Design Guides

Structural Screw Catalog

A catalog with all information on our ICC & CCMC code-approved fasteners, including dimensions, references & design properties.

Structural Screw Connection Design Guide

Companion to the Structural Screws Catalog, it provides easy-to-read tables for the most common mass timber connections with design values & installation instructions.

Code Approvals

Code Approvals

ICC Code Approval ESR-3179 for Partially Threaded Fasteners - 2022 Edition (October)

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