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- Application: Multi-Purpose
- Brand Name: Backer-On
- Callout Size: No. 9
- Container Size:
- Diameter:
- Drive Style: Star
- Driver Bit Included: Yes
- Finish: Zinc-Plated
- Gauge:
- Grade:
- Head Type: Flat
- Length: 2-1/4
- Material: Steel
- Number in Package: 100
- Packaging Type: Clamshell
- Product Type: Cement Board Screws
- Self Drilling: Yes
- Self Tapping: Yes
- Sub Brand: Rock-On
- Thread Type: Serrated
- Color: Green
- Indoor or Outdoor: Indoor








