Duro Dyne® SAT81

Several common methods such as rivets, screws, and spot welding are used to fasten materials to ductwork. Three types of screws are most often used. The first is self-tapping only and requires a hole to be drilled before the screw can be utilized. The others are both self-tapping but also create their own holes. Self piercing screws have very sharp points which act much like a scratch awl in making a small opening in the steel for the threads to engage and work the sheet metal into a coned threaded hole. These work well for light gage steel.

Duro Dyne® Super Saber® Self-Piercing Screw, Threaded, Measurement System: Imperial, #8-15 Thread, Slotted Hex Head, Steel, Zinc Plated, Twin Lead Point, 1/4 in Drive, 1 in Thread Length, C55 Hardness

• Cold heading quality steel wire
• Case hardened to rockwell C55 minimum
• Twin lead point (two continuous threads)
• 0.168 to 0.162 in major dia
• 0.123 to 0.116 in minor dia

• Duro Dyne 14159 Catalog https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Duro_Dyne_14159_Catalog.pdf
• Duro Dyne 14159 Specification Sheet https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Duro_Dyne_14159_Specification_Sheet.pdf