Series 798 Double Expansion Shield
Can be used for fastening Into rock, concrete, brick, etc.
Eliminates high stress points detrimental in fastening into materials of medium hardness, expands fully and has high gripping power.
Ideal for sheer loads or where bolt is subject to side pressure or vibration.
Does not fracture, and permits fastenings at any length.
1. Drill hole of recommended diameter (slightly deeper than length of shield).
2. Shield should be flush or slightly below surface of masonry. Place fixture. Insert machine bolt and tighten.
3. A deep setting increases holding power of masonry. If desired, place & pipe sleeve between shield and fixture being attached.
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