GALV Convergence Bolt (5/8",200mm)

Specifications & Features
Model: Bolt58-20-200-GALV

Geomaster galvanized Convergence Bolt with integrated bi-reflex Target (Retro-reflective Target Rebar
Adapter), designed for surveying and geotechnical monitoring applications.

1. Key Specifications
1)Bolt Adapter: 5/8" male adapter
2)Rebar Diameter: 20mm
3)Overall Height: 200mm
4)N.W.: 550g
5)Material: Galvanized Steel Rebar (GALV)

2. Corrosion Resistance
Galvanized steel rebar for reliable corrosion resistance in humid and acidic tunnel environments;
hot-dip galvanized (HDG) to ASTM A153 or ISO 1461, suitable for long-term tunnel monitoring.

3. Application
Primarily used in civil engineering and construction, such as tunnel building, to monitor ground or
structural deformation (convergence measurement). Monitoring Prisms or Bi-reflex Targets are
typically mounted onto Geomaster Convergence Bolts.

4. Bolt Adapter
Features a fixed 5/8" male adapter, specifically designed for use with most surveying equipment with
a 5/8" female adapter, eliminating the need for an additional separate adapter.

5. Compatibility
1)Ideal for Geomaster Bi-reflex Targets GRT144-470 series.
2)Fits Geomaster Prism Holders & Targets and Mounting Sets, including GHT112 series, X12-6402 series,
and SX12-6402 series.
3)Compatible with all other surveying prisms.

6. Protective Cap
Supplied with a white PVC protective cap.
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