nutjob wrote in news: snipped-for-privacy@mid.individual.net:
Really? Maybe you ought to check the title of the thread. The subject is bolts. Not set screws.
*Do* try to pay attention next time.
Like a guinea pig? When I was a kid I had a male and bought an alleged female. I had visions of litters of guinea pigs to sell. After a fwe months I concluded they were gay little piggies.
Not necessarily true. Metric bolt head size differs depending on the standard - JIS, DIN,ISO or ANSI/ ISO or DIN/ISO. A 10mm DIN uses 17mm, while ISO uses 16 and JIS uses 14mm. That's why tool kits for European, Japanese, and American vehicles etc contain different assortments of wrenches. Only JIS (Japanese standard) uses 12mm and only DIN specific sets have an 11mm (used on DIN 7mm bolts - no other standard even HAS a 7mm bolt) Same for a 27mm wrench and 18mm bolt.
American vehicles tend to use DIN/ISO, so 11mm (same as 7/16) is included in american sets for use on some 6mm bolts ---
Not "always" - 12 point heads on "header bolts" and some cyl head bolts can be the same size as the bolt thread diameter - but they are "flanged" bolts. Some old "plough bolts" also used a square heas the same size across flats as the thread size.
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.