Select the right Fastener

Selection of the correct Fastener is very important. Begin by assessing the load that will be placed on it. Any metal fastener will hold well against a sideways (shear) force. But with a tensile force pulling the fastener straight out, holding strength becomes increasingly dependent on the threads (or formed head in the case of rivets) holding the fastener in place. The load on lifting and towing eyes is almost entirely tensile — it is trying to stretch the fasteners or pull them from their holes. Cost of the fastener is always insignificant compared to maintenance and liability costs resulting from joint failure. The right fastener and proper installation methods keep bolted joints from loosening.

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