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VSM
Load Data
Characteristic Capacity (kN)
Fixings (3.4 x 35mm)
Hanger Depth (mm)
Masonry Crushing Strength
Uplift
Incoming
3.5N/mm 2
7.0N/mm 2
2.8N/mm 2
225
6
2.40
8.32
10.40
10.40
Installation Instructions Stage 1
Stage 3 Locate incoming member and adjust side plate to correct angle, ensuring maximum gap between incoming joist and back plate is no greater than 3mm.
Adjust side plate to approximate angle between 30° and 90° using scale on base of hanger, bending only once. Refer to the angle table below to determine if one or two bends are required.
Single Bend
Joist Width (mm) Double bend
Single Bend
35 38 44 45 47 51 53 58 59 60 63 70 72 76 88 89 90 94 97
n/a n/a n/a n/a n/a
30–90° 30–90° 30–90° 30–90° 30–90° >32–90° >32–90° >34–90° >34–90° >35–90° >37–90° >39–90° >40–90° >42–90° >46–90° >46–90° >46–90° >48–90° >49–90°
30–32° 30–32° 30–34° 30–34° 30–34° 30–37° 30–39° 30–40° 30–42° 30–46° 30–46° 30–46° 30–48° 30–49°
Max – 3mm gap at any given time
Double Bend
Stage 4
Fix to incoming member using 6No 3.4 x 35mm square twist nails. Where incoming member is an I–joist, web stiffeners must be fixed as per I–joist manufacturer’s guidelines.
Stage 2 Position VSM flush against masonry.
Ensure that 1No inner nail hole (indicated in red) and 1No outer nail hole (indicated in red) are filled on the underside with a 3.4 x 35mm square twist nail.
The latest most up to date version will always be online and not in print or in downloaded pdf.
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Technical support 01592 771132 / technical@itwcp.com / https://www.itwcp-offsite.co.uk
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