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Here you can see how the countersunk hole on the right has forced & compressed the butyl against the bolt and into the threads creating a great seal. The bolt on the left was not countersunk and has very little sealing surface area around the bolts shank or threads.
Full EXIF Info | |
Date/Time | 04-Nov-2008 15:07:27 |
Make | Nikon |
Model | NIKON D200 |
Flash Used | No |
Focal Length | 70 mm |
Exposure Time | 1/60 sec |
Aperture | f/5.6 |
ISO Equivalent | 100 |
Exposure Bias | |
White Balance | |
Metering Mode | matrix (5) |
JPEG Quality | |
Exposure Program | aperture priority (3) |
Focus Distance |
© All Images property of Compass Marine Inc.
Dan | 20-Sep-2009 14:28 | |
Al Cooper | 18-Nov-2008 20:42 | |