ZAC® Self-drilling screw - Cupped Hex Washer head - ZAC®
Cold-forged ZAC® and WoodZAC® endure clamping loads, drill speeds, and moisture
Every screw detail withstands the rigors of roofing and exterior cladding, from the uncompromising point strength to the zinc alloy cap head which prevents red rust. Explore our inventory to learn why ZAC® and WoodZAC® lead the industry.
#12 ZAC® SD3 Metal Self-Drill Screw, Zinc Alloy Capped HWH (3/8") | ZSD3-12-CHW3/8
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65 variants
#12-14 ZAC® Impax SD3 (3/8") Metal to Metal Fastener
#12 ZAC® SD3 Metal Self-Drill Screw, Zinc Alloy Capped HWH (5/16") | ZSD3-12-CHW5/16
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62 variants
#12–14 ZAC® Impax SD3 Metal to Metal Fastener (5/16")
#12 ZAC® SD4.5 Metal Self-Drill Screw, Zinc Alloy Capped HWH | ZSD45-12
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1 variants
#12-24 ZAC® Impax SD4.5 Metal to Metal Fastener & SD5
#12 ZAC® SD5 Metal Self-Drill Screw, Zinc Alloy Capped HWH | ZSD5-12
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2 variants
#12-24 ZAC® Impax SD4.5 Metal to Metal Fastener & SD6
1/4" ZAC® Lap Panel Self-Drill Screw, HWH (3/8") | ZSDL-14-CHW3/8
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26 variants
1/4-14 ZAC® Impax Lap (3/8") Panel to Panel Fastener
1/4" ZAC® Lap Panel Self-Drill Screw, HWH (5/16") | ZSDL-14-CHW5/16
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37 variants
1/4-14 ZAC® Impax Lap (5/16") Panel to Panel Fastener
1/4" ZAC® SD2 Metal Self-Drill Screw, HWH (3/8") | ZSD2-14
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19 variants
#1/4-14 ZAC® Impax SD2 Metal to Metal Fastener (3/8")
1/4" ZAC® SD3 Metal Self-Drill Screw, HWH (5/16") | ZSD3-14
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19 variants
#1/4-14 ZAC® Impax SD3 Metal to Metal Fastener (5/16")
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Head Cap
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