Bostitch 1 In. 18 Gauge 5/16 Crown Staples Bostitch manufactures over 2000 types of fasteners. Each fastener is engineered for optimal performance in Bostitch tools, and for exceeding the performance expectations of our customers. Our goal is to continually increase efficiency, productivity and quality, and to ensure building code compliance through the ICC ESR 2020, ICC ESR 1539 and ICC ER 5426 reports. Our team of engineers leads the industry in innovation and design. Utilizing our advanced laboratory, our team of engineers conducts environmental testing to study the effects of storm forces and other weather conditions, withdrawal testing to evaluate new coatings, penetration testing to evaluate drive characteristics, and development testing to optimize withdrawal, shear and pull-through performance. Features Used with 1 inches Caps to hold felt house wrap For use in Bostitch SB150SLBC-1 Cap Stapler 10X Faster than hand nailing 18 Gauge 3000 per pack 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.