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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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"auto-breakoff" head screws, or HUGE pop rivets?
looking for a mechanical method to attach sheet metal to thick steel
without welding, drilling, or tapping. preferably leaving behind tamper-proof (or 'nearly so') heads. what's a guy ask for when he wants a self-drilling, self-threading machine bolts that have heads on them that snap off after a certain torque is reached? alternately, are there bolts made (just like above) except they'd have TWO heads 'stacked' in an hourglass-like config, so that I'd have to CUT their uppper heads off with my cutoff wheel, manually? (which'd be perfectly fine with me) alternately, what's the biggest diameter pop-rivet that can be 'manually popped'? I mean like for which a tool that's "fairly readily available" new -or- used? thanks guys, toolie |
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