Premium Survey Nails for Concrete and Asphalt, Cross Head PK Nails, Road Settlement Observation Markers, Galvanized Or Stainless Steel Options. (10pcs round, Stainless Steel, 5cm/2.0")

Heavy-Duty Survey Nails for Concrete & AsphaltCore Features:Precision Cross-Head:Exact center point for aligning total stations and plumb bobs. For road settlement observation markers and control point nails.Robust Shank Diameters:Available in heavy-duty 8mm (approx. 5/16") and 10mm (approx. 3/8") thickness. The deeply ribbed shank securely anchors into concrete, masonry, asphalt, and hard soil without buckling.Material Options:Galvanized Steel: Excellent holding power for standard construction and temporary land surveying supplies.Stainless Steel: Rust and corrosion-resistant for outdoor exposure and geodetic markersSize & Pack Guide (1.2" - 4" Lengths):10 & 30-Pack: Perfect for small driveway jobs or marking property line boundaries.50 &: The economical choice for heavy civil engineering, highway projects, and large-scale site prep.

• Designed for Survey Marking: These survey nails are made for marking control points, road settlement points, layout reference points, and construction measurement locations on concrete, asphalt, and similar hard surfaces.
• Cross Head and Round Dot Options: Available in cross head and round dot top styles to support different marking needs. The visible top design helps users quickly identify reference points during site measurement and inspection work.
• Stainless Steel or Galvanized Material Choices: Choose from stainless steel or galvanized options based on your project environment. Both material options are suitable for jobsite marking, mapping, roadwork, and general construction reference use.
• Stable Placement for Hard Surfaces: The nail body is designed for firm positioning in concrete and asphalt applications. Suitable for survey crews, road construction teams, civil engineering projects, and outdoor layout tasks.
• Practical for Field and Jobsite Use； Compact and easy to carry in tool bags, storage boxes, or survey kits. Suitable for contractors, engineers, surveyors, builders, and maintenance teams who need reliable point marking hardware.