Features: 1. Ideal for attaching drywall to wood studs. 2. The use of PrimeGuard Plus stainless steel fasteners is recommended for all outdoor project 3. Conforms to FFN105B and ASTM F1667 if applicable Specification: 1. Smooth or Ring shank, large cupped head, sharp diamond point 2. Low carbon wire. 3. Phosphate coated 5. Taiwan origin