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Holtwood Marketing Ltd. The Survey Centre, Meridian House, |
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Holtwood Marketing Ltd. The Survey Centre, Meridian House, |
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Ground & Height Bolts
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Cat .No. 11b Wide,shallow domed brass combination survey and levelling point for grouting into concrete or other surfaces |
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Cat. No. 11 c Flat headed brass station marker. |
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| Domed headed brass levelling bolts, can be supplied with
centre-point at small additional cost. Can either be grouted, epoxied or installed using the 11 h-SD plastic plugs. L=35mm Cat. No. 11 d L=50mm Cat. No. 11 d-2 L=70mm Cat. No. 11 d-3 |
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| Short, high domed brass levelling bolt, can be supplied with centre point if required. Cat. No. 11 e |
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| High domed brass levelling bolt with split tail, designed to be cast into concrete to form long-term mark. Have been widely used as permanent GPS stations. Cat. No. 11f. |
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| Brass levelling bolt, for grouting, or fixing with epoxy.
Cat. No. 11k |
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Cat. No. 5e Heavy duty brass levelling bolt, for grouting into vertical surfaces. |
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Brass Cat. No. 5f-M Stainless steel Cat. No. 5f-E General purpose levelling bolt, available in brass or stainless steel. For grouting into verticle surfaces, or can be installed using 11 h-SD plastic plugs, grout or epoxy. |
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Cat. No. 17 KVS60/1 Level point for horizontal surfaces. A 1 5mm hole is drilled into the surface, and a plain yellow plastic insert is placed in the hole and secured by driving home the plastic plug. The metal domed insert is then tapped home to form the level point. |
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Cat. No. 11 h-6 (centred) Cat. No. 11 h-7 (plain) Cat. No. 11 h-SD (plastic plug) 30mm dia. flat brass markers, with centre-point (11 h-6) or plain face (11h-7). install in 12mm hole either with epoxy, or with 11h-SD plastic plugs. Using special drill bit ref. 11h-SBO , the marks can be set flush to the surface. |
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