LB 10x1.5WHT Roof Screw Designed to fasten steel roofing to wood purlins used in post frame construction plywood or OSB used in residential construction. Produced with coating with enhanced corrosion resistance over painted heads. 2.5 mils of powder with chromate sealer. HWH with V-neck design adds strength prevents heads from popping. EPDM rubber is vulcanized to a steel washer to form an excellent seal even when driven at an angle. Designed to fasten steel roofing to wood purlins used in post frame construction plywood or osb used in residential construction Produced with coating with enhanced corrosion resistance over painted heads 2.5 mils of powder with chromate sealer HWH with V-neck design adds strength prevents heads from popping EPDM rubber is vulcanized to a steel washer to form an excellent seal even when driven at an angle Threads transition from fine to coarse to generate superior holding strength in various wood substrates Micro-bit point reduces metal shavings that can embed themselves in the rubber washer Starts fast finishes straight Pro-stick bit included. Specifications 1 lb Size: 10 x 1.5" Finish: White. Features Designed to fasten steel roofing to wood purlins used in post frame construction plywood or osb used in residential construction Produced with coating with enhanced corrosion resistance over painted heads 2.5 mils of powder with chromate sealer HWH with V-neck design adds strength prevents heads from popping EPDM rubber is vulcanized to a steel washer to form an excellent seal even when driven at an angle USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.