badmother, i dont know what you do for a living, but you could surely open a weekend shop installing brompton brackets! i think you could streamline the process using something like JB Weld Stick. its an epoxy putty that is designed for metal. i used it at uni when i was building models:
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[h=2]J-B SteelStik[/h]Steel Reinforced Epoxy Putty
- Strength 900 PSI
- Set Time 5 Minutes
- Cure Time 1 Hour
- Cure Color Dark Grey
Great For:
- Automotive & Machine Parts
- Exhaust Systems
- Plumbing
- Stripped Threads
- Rust Damage
- Household Repairs
SteelStik is a hand-mixable, steel-reinforced, non-rusting epoxy putty that quickly repairs or rebuilds anything made of metal. After mixing, it forms an industrial-strength polymer compound that can be molded into shapes or used to build up, patch and repair steel components. SteelStik sets in 3-5 minutes and after 60 minutes, can be drilled, tapped, machined, ground, filed and painted. SteelStik cures to a dark grey color, is rated at a tensile strength of 900 PSI and will withstand temperatures up to 300ºF.
INSTRUCTIONS
Cut: Remove required amount of putty.
Mix: Thoroughly knead putty with fingers to a uniform color.
Apply: Press putty firmly to the surface to be repaired.
* For best results use a detergent or degreaser to first clean the surface, then roughen surface with file or coarse sandpaper to provide the best repair.