Mazel electro-galvanized roofing nails with a wide flat head and diamond point, sized for fastening asphalt shingles, roofing felt, and insulating board to wood roof deck. Steel core with a thin zinc electroplate finish for general weather resistance under shingle cover.

• Length: 1-3/4"
• Shank: 11 gauge steel
• Head: large flat head seats shingle face flush
• Point: diamond point
• Finish: electro-galvanized zinc plate, intended for use under shingle cover
• Packaging: 30 lb pail

Tip: 1-3/4" length is sized for heavier re-roofing over an existing course with 30# felt, or for installations where thicker underlayment adds stack height. Drive heads flush with the shingle surface and not into it -- overdriven nails crush the asphalt mat and lead to leaks.