Grip-Rite Pro-Twist No. 12 hex head screws with washers deliver fast, dependable outdoor fastening for wood and light metal applications. This 1-1/2 in. screw size in a robust 5 lb box combines a hex drive, self-drilling capability, and integrated washers to streamline your install and improve long-term performance in exposed environments.
Key features that stand out
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Self-Drilling and Self-Tapping: minimizes or eliminates pre-drilling for many outdoor projects, speeding up installation without sacrificing hold.
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Hex Drive: powerful, slip-resistant driving with a standard hex bit for precise torque control.
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#3 Drill Point: optimized to start cleanly and pierce through wood or thin metals with confidence.
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Coarse Thread: strong engagement in softwoods, composites, and other common exterior materials.
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Washer Included: distributes load and enhances sealing against moisture, reducing pull-out and surface damage.
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Finish: zinc-plated coating provides corrosion resistance for outdoor use and changing weather conditions.
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Material: durable steel designed to stand up to the rigors of exterior projects.
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Outdoor Ready: specifically chosen for exterior environments where moisture and temperature shifts are a factor.
Specifications at a glance
Size: No. 12 | Length: 1-1/2 in | Drive: Hex | Head: Hex | Point: #3 Drill | Thread: Coarse | Finish: Zinc-Plated | Material: Steel | Packaging: 5 lb Box | Sub-brand: Pro-Twist | Use: Outdoor
Why this screw stands apart
Unlike standard wood screws, the Grip-Rite Pro-Twist line brings together a self-drilling tip, a hex drive for steady torque, and washers that stay in place to seal and spread load. This combination translates to faster projects, fewer callbacks for loose fasteners, and cleaner results in decks, fencing, and exterior trim. The No. 12 diameter offers reliable holding power without excessive bulk, while the 1-1/2 in. length provides a versatile match for common lumber thicknesses and light-gauge metal applications.
Ideal applications
- Decking and railing installation in pressure-treated lumber or composite boards
- Outdoor fencing, gates, and trim where a weather-resistant fastener is needed
- Exterior siding repair, soffits, and fascia with a dependable seal
- Fastening metal flashing to wood in outdoor structures
Practical installation tips
- Use a hex driver that fits snugly to prevent cam-out; let the self-drilling tip cut in without forcing the screw.
- For very hard woods or dense materials, consider a light pre-drill to maintain alignment and reduce splitting.
- Avoid over-tightening to preserve washer seal and minimize wood damage.
What’s in the box
A ready-to-use 5 lb box of Grip-Rite Pro-Twist No. 12 screws with washers, ideal for larger outdoor projects or multiple repairs.
