2"L Wood Screws
Screws are available for both wood or metal frames. Metal screws are self-tapping and used for aluminum or steel frames. 1"L screws are used with 6mm twin wall or when fastening through the valley (low side) of corrugated sheeting. 2"L screws are used with 8mm twin and triple wall or when fastening corrugated sheeting through the crest (high side). Use for flat or corrigated polycarbonate sheets. 500 screws per case.
2013 Master Catalog: Page 363