Attachment 2 - Stair tread Bolt pattern example.pdf

The image depicts a rectangular surface with six bolt holes arranged in a specific pattern. Two key technical preferences are noted:

1. The preferred bolt pattern is offset from the centerline of the tread, with bolts positioned asymmetrically along the edges and center of the rectangular component.
2. A continuous surface without penetrating holes is preferred to minimize dirt accumulation, suggesting an emphasis on clean, streamlined design and ease of maintenance.