Loxcreen has announced its new contractor packs available for the company’s ProVa-Board Plus screws and washers, which must be used together for a safe, simple and durable ProVa-Board panel installation, according to the company. The contractor fastener packs are available in 3” screws-200 units, 1 3/4” screws-200 units and 1 1/4” washers-100 units.