[Antennas] Fasteners

2002年6月24日 15:29:44 -0500

One or two other not too trivial considerations:
If your tower fell for any reason and caused me any damage and I could
prove that you had assembled it with non-factory-supplied/approved
fasteners, guess who would win the lawsuit?
Also, if you had to secure a building permit for the tower and it was based
upon the engineering specs of the manufacturer, you would be in violation
of civil codes if you used inferior fasteners.
Frank has good advice . . .
73/72/oo, George W5YR - the Yellow Rose of Texas 
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe 
Amateur Radio W5YR, in the 56th year and it just keeps getting better!
QRP-L 1373 NETXQRP 6 SOC 262 COG 8 FPQRP 404 TEN-X 11771 I-LINK 11735
Icom IC-756PRO #02121 Kachina 505 DSP #91900556 Icom IC-765 #02437
A10382 wrote:
>> There is no substitute for quality fasteners....
> Get the SAME (SAME meaning IDENTICAL) ones speced by the tower
> manufacturer and DO NOT SKIMP....
> Same grade
> Same size
> Same thread (and a lock nut if speced)
> Same washer & lock washer and nuts as speced
> Some manufacturers spec a torque setting for a reason
> Buying from the tower manufacturer directly may cost a bit more, but may
> save you a lot of headaches in the future... Almost every tower will
> eventually need to come down. It's easier to unscrew a bolt than cut it
> with a torch!
> -------------------------
> Stainless steel:
> IS NOT rust proof, just very rust resistant
> Can very in strength and quality
> Can gall - you may need to use some sort of anti-electrolysis
> compound, especially if within 20 miles of salt water.
> Is usually not as strong as similar grade carbon steel bolts
> Imported bolts & nuts are frequently mis-labeled as to grade
> Same is true of units of unknown origin
> Lowes and Home Depot stress price! Read what you will into that
>