diameter 4.5 x 52fully threadedself-tappingstainless steel
9 holes - 160 x 12 - narrow - stainless steel
12 holes - 190 x 11.5 - stainless steel
14 holes - 250 x 12 - narrow - stainless steel
18 holes - 322 x 16 - broad - staggered holes - stainless steel
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