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Provides a watertight seal to prevent water ingress Used mainly with drive screw nails and spring head roofing nails To fit 8.0 mm diameter screws 30 mm diameter, Weight: 0.005291094288 pounds, Manufacturer: TIMCO
ManoManoGeneral description Used mainly with drive screw nails and spring head roofing nails for attaching corrugated roofing sheets to wooden purlins. The washer provides a watertight seal when used correctly.
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