Simpson 1-1/2" x 4d Finishing Nail, 316 Stainless Steel, 14 Ga. PACK:5 Lb (2170) 12 is a solid carbide

12 is a solid carbide reversible insert knife with dimensions 39

This is particularly important when reversing feed direction

Type 304 stainless-steel pin for enhanced corrosion resistance

and fast setup are essential

Simpson 1-1/2" x 4d Finishing Nail, 316 Stainless Steel, 14 Ga. PACK:5 Lb (2170) 12 is a solid carbideSimpson 1 1 2" 4d Finishing Nail in 316 Stainless Steel is a premium brad head finishing nail designed for applications where corrosion resistance is essential. Crafted from Type 316 stainless steel the grade preferred for coastal and seaside environments this 14 gauge nail drives cleanly and conceals easily, making it a trusted choice for fine finish carpentry, trim work, and exterior millwork exposed to moisture, salt air, and harsh weather