50mm SURVEY POINT Nail
€0.81
Available in three sizes 50mm, 75mm, and 100mm, the latter being type 1 permanent ground marker for dense very stable paved surfaces.
- Large 20mm diameter head has a central monitoring recess which can be used to accurately receive a plumb-bob or prism pole.
- The precise marks on the head allow easy alignment through an instrument's optical plumbing device.
- Head has 'SURVEY-POINT' set as raised letters around the recess for instant identification.
- Steel grade: #45
- Tensile strength: 800MPa
- Yield strength: 640MPa
- Zinc plated
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