3 Shape Washer
- Formwork 3 Shape Washer is a specialized fastener that prevents bolts from pulling through concrete formwork. Its triangular or 3-sided ribbed design grips the formwork to stop rotation, distributing pressure more evenly that standard flat rib washer
- The 3 shape washer wide ribbed base spreads the bolts clamping force, preventing the formwork panel from crushing or deforming, non-circular “3 shape” locks into place, keeping the fastener secure against vibrations during concrete pouring
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