D90 Step Rails & Rusty Bolts - Page 2 - Defender Source
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  #21  
Old January 25th, 2012, 09:45 AM
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Jeff A
97 Defender 90 SW #593
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In my case it is also where the rock sliders mount. Beyond the fact that it is a primary connection between the bulkhead and chassis, I want a solid mounting point that is not going to bend or sheer in the event that it takes a hit.
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  #22  
Old February 2nd, 2012, 08:04 AM
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Andrew Dance
1994 D-90 ST
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I cleaned up one of the old bolts, it says it's grade 10.9 which has a tensile strength of 1040 MPa. The stainless ones are 101,000 psi which is 696 MPa. So the stainless bolt will be approximately 2/3 as strong (in tension anyway).
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