1 1/2" long x 1/4" thick (100 nails per box) 

Chris Nik's MAG NAILS for surveying have become the preferred nail among surveyors worldwide.

• Non-Corrosive survey nail
• Ideal for bridge projects
• Non-magnetized, not hardened
• Larger center point
• Reclosable locking box
• Pre-drilling* is required in almost all applications
• Marking whiskers can be installed with these mag nails

*NOTE: For pre-drilling into concrete use a 1/4" masonry drill bit for 1-1/2" mag nails.