About twice as strong as aluminum rivet nuts, these steel rivet nuts are zinc yellow-chromate plated for corrosion resistance. a ribbed body holds the nut in place so it won't turn when tightening a screw. also known as blind inserts, they can be installed when you have access to only one side of the material. install in a drilled hole using a rivet nut tool.
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Non-metal bolts and screws are even more limited in strength than aluminum ones, but they're still a good option for medical and food-manufacturing applications. for most applications, a coated or galvanized steel fastener is the best option for pairing with aluminum. but the options don't stop there. not sure which grade or type of steel you need?
Jam nuts, cotter pins, lock nuts, lock washers and similar devices also prevent the loss of the bolt or nut by back off but they result in added weight, inconvenience and cost. they do not reduce the tendency to fatigue when loose. further, the insecurity of conventional mechanical locks are reason enough for most designers to reject them. such
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