Product Overview
MTW45-8-R10 Mass-Timber Angled Washer (Box of 10pcs)
Inclined screws greatly increase the strength and stiffness of mass timber connections. The Simpson Strong-Tie® MTW45-8 is designed for use with a wide variety of connection plates and 8 mm-diameter Simpson Strong-Tie Strong-Drive® SDCF Timber-CF screws driven at a 45° angle.
Key Features
- Recessed hole provides a clean finish with the SDCF countersunk head
- Guides screw to an accurate 45°angle
- High capacity reduces number of screws required in a connection
- Material: ASTM A27, Grade 70–40
- Finish: Zinc electroplated
Installation
- Use all specified MTW45-8 washers and Strong-Drive SDCF Timber-CF screws.
- Allowable connector plate thickness is 10 gauge (0.134") minimum and 1/2" maximum, with minimum specified tensile properties of Fy = 33 ksi and Fu = 45 ksi.
- Fabricate plates with obround holes as given in the installation images. If plates are galvanized after holes are punched, oversize holes to account for galvanized thickness.
- Insert MTW45-8 into obround holes and drive Strong-Drive SDCF Timber-CF screws at a 45° angle in the direction specified by the designer. Countersunk screw heads shall be fully seated into MTW45-8 screw hole.
Loads
- Allowable loads for straps using the MTW45-8 are the responsibility of the designer. See L-MTW45SDCF for design information.
