ZAC® Impax™

ZAC® Impax™ Screws

SFS developed precision cold forged ZAC® Impax™ screws to endure heavy clamping loads and maximum drill speeds. Every detail accommodates the rigors of roofing and exterior cladding, from the uncompromising point strength to the zinc alloy cap head which prevents red rust. Browse our eight different ZAC® and ZAC® Impax™ designs to find the ideal metal-to-metal drill screw for your specific needs. Our team is ready to assist and answer all roofing questions!

12-14 ZAC® Impax™ SD3

• 3/8" or 5/16" AF Zinc aluminum capped hex washer head
• #3 self-drill point
• EPDM washer
• Drilling capacity: .035-.210"
• Available lengths 3/8" CHWH: 1", 1-1/4", 1-1/2", 2", 2-1/2", 3"
• Available lengths 5/16" CHWH: 1", 1-1/4", 1-1/2", 2"

• Application: Metal panel to light and medium gauge metal application

Product Data Sheet (3/8") - PDF, 0.14 MB
Product Data Sheet (5/16") - PDF, 0.13 MB

1/4-14 ZAC® Impax™ Lap

• 3/8" or 5/16" AF Zinc aluminum capped hex washer head
• #1 self-drill point
• EPDM washer
• Drilling capacity: .030-.095"
• Available lengths: 7/8"

• Application: Panel to panel side lap, end lap, and other stitch applications

Product Data Sheet (3/8") - PDF, 0.13 MB
Product Data Sheet (5/16") - PDF, 0.13 MB

12-14 ZAC® Lap SP

• 3/8" AF Zinc aluminum capped hex washer head
• Sharp point
• EPDM washer
• Drilling capacity: .030-.060"
• Available lengths: 3/4"

• Application: Assembled EPDM washer for metal to metal

Product Data Sheet - PDF, 0.08 MB

1/4-14 ZAC® Impax™ SD2 & SD3

• SD2: 3/8" AF Zinc aluminum capped hex washer head
• SD3: 5/16" AF Zinc aluminum capped hex washer head
• #2 or #3 self-drill point
• EPDM washer
• Drilling capacity SD2: .050-.150"
• Drilling capacity SD3: .050-.210"
• Available lengths SD2: 1-1/4", 1-1/2"
• Available lengths SD3: 1-1/4"

• Application: Panel to panel side lap, end lap, and other stitch applications

Product Data Sheet - 1/4-14, SD2 (3/8") - PDF, 0.13 MB
Product Data Sheet - 1/4-14, SD3 (5/16") - PDF, 0.13 MB

12-24 ZAC® Impax™ SD4.5 & SD5

• 3/8" AF Zinc aluminum capped hex washer head
• #4.5 or #5 self-drill point
• EPDM washer
• Drilling capacity SD4.5: .075-.375"
• Drilling capacity SD5: .075-.500"
• Available lengths SD4.5: 1-1/4"
• Available lengths SD5: 1-1/4", 1-1/2"

• Application: Assembled EPDM washer for metal to metal

Product Data Sheet - PDF, 0.13 MB

1/4-14 ZAC® Type 17-AB

• 3/8" AF Zinc aluminum capped hex washer head
• Type 17-AB milled point
• EPDM washer
• Drilling capacity: .018-.030"
• Available lengths: 1", 1-1/2", 2", 2-1/2"

• Application: Metal panel to medium metal applications or metal panel to wood applications

Product Data Sheet - PDF, 0.19 MB

#17 ZAC® Type AB
Strip-out Repair

• 3/8" AF Zinc aluminum capped hex washer head
• Type AB
• EPDM washer
• Repair fastener for stripped out #14 Type A or 1/4" AB
• Available lengths: 1", 1-1/2"

• Application: Strip out repair of metal panel to light and medium gauge metal applications

Product Data Sheet - PDF, 0.14 MB

Support your next roofing or cladding project with the strength and mastery of ZAC® and ZAC® Impax™ screws. All SFS drill screws undergo strict testing to ensure uncompromising performance, backed with the SFS long life fastener limited warranty. Our superior standards and forward-thinking engineering are why builders the world over prefer SFS.

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RC Reference Documents

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For more information, contact:

in the U.S.:
» 1-800-234-4533
» us.construction@sfsintec.biz

in Canada:
» 1-866-847-5400
» ca.info@sfsintec.biz