has 2 aluminum washers.

J.C. Whitney: http://www.jcwhitney.com/webapp/wcs/stores/servlet/Product?storeId=10101&Pr=p_Product.CATENTRY_ID%3A2008042&TID=8014524F&productId=2008042&catalogId=10101


McMaster-Carr has this selection:

M3 3.2 mm 7 mm .45 mm 98044A212 6.17 per Pack of 25
M4 4.3 mm 9 mm .7 mm 98044A216 6.24 per Pack of 25
M5 5.3 mm 10 mm .9 mm 98044A220 6.67 per Pack of 25
M6 6.4 mm 12 mm 1.4 mm 98044A224 10.41 per Pack of 25
M8 8.4 mm 16 mm 1.4 mm 98044A228 7.29 per Pack of 10
M10 10.5 mm 20 mm 1.8 mm 98044A232 6.82 per Pack of 5
M12 13 mm 24 mm 2.3 mm 98044A235 9.37 per Pack of 5
M14 15 mm 28 mm 2.3 mm 98044A238 2.89 per Pack of 1
M16 17 mm 30 mm 2.7 mm 98044A241 2.92

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1970 280S M130 engine- good runner
1971 250 M130 engine- #2 rod bearing, gone
1971 280SE (blown engine,parts car)
1977 German 280S W116-only 33 years old