5 ms·
while I know they exist and I can point to an interesting collection I don't know the history of how they were invented and when: https://www.celofixings.com/1
by froh 4y ago
while I know they exist and I can point to an interesting collection I don't know the history of how they were invented and when:
https://www.celofixings.com/1663-self-tapping-and-self-drilling-screws https://www.celofixings.com/1663-self-tapping-and-self-drill...
- kragen 4y agoThanks! But this just seems to be an empty page with a cookie clickwrap extortion box on it?
- froh 4y agothis is what it says to me: > Self-tapping and self-drilling screws > CELO is leading the self-tapping and self-drilling screw market. > CELO's self-tapping and self-drilling screws offer the widest selection for installations of joining metals, PVC profiles and aluminium sheets. > In this section you will find our screws in all sizes, recesses, head types and coatings. and then pages over pages of a catalogue. it was the first catalogue link searching for "self taping and self drilling screws"