Hobson performance data
H-IT Mushroom Anchor, Mechanically Galvanised: Performance Data
Hobson's two-page data sheet for the H-IT mushroom anchor, part MHAHTMMM: a mechanical hammer-in anchor with a domed head for fast installation, suitable for tamper proof fixings. It lists sizes, installation specifications and a load table.
What this covers
- Material and application
- Sizes
- Installation specifications
- Load performance
Key things to remember
The essentials from this document in plain words. Check the full document before you rely on a figure.
- For concrete, solid brick or stone and core filled block.
- Sizes: 5mm in 25mm, 32mm, 38mm and 50mm lengths; 6.5mm in 25mm, 38mm, 50mm, 63mm, 75mm and 100mm lengths. Drill the hole the same size as the anchor.
- Minimum embedment 20mm (5mm), 25mm or 30mm (6.5mm); maximum fixture thickness from 2mm to 65mm depending on length.
- Minimum spacing and edge distance: 50mm and 60mm for 5mm anchors, 65mm and 78mm for 6.5mm anchors.
- AISI 1040 carbon steel, mechanically galvanised, coating at least 4.0μm.
- The load table gives tension and shear for 5mm and 6.5mm anchors at 22mm, 25mm and 32mm embedment in 25MPa, 32MPa and 40MPa concrete. The sheet does not say whether these are working or ultimate loads, so we do not quote them here.
Who it helps: Electricians, plumbers and builders making quick light fixings into masonry.
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This document is published by Hobson Engineering, who supply this range to us. We show it here in full so you can read it next to the product; the summary above is ours. Read it on this page or download the PDF. For the most current version, ask us.