The Industrial Fasteners Institute (IFI) is continuing its long tradition of being the premier source for fastener technical data with its release of the 8th Edition IFI Inch Standards Book in early 2011. This will be the first time this book will be offered both in hard cover and as a PDF download. The book contains more than 1100 pages of fastener standards. Also, the related technical information has been removed from this book and is now published separately in the IFI Fastener Technology Handbook. More than 50% of the standards in the book have been updated since the publication of the 7th Edition in 2003. Some of the most significant revisions are: • ASME B18.2.1, Square, Hex, Heavy Hex and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head and Lag Screws (Inch Series): – Reorganized for easier use. – Addition of hex flange head and lobed (six) head screw designs plus the applicable gages. – Heavy hex head cap screws extended in size range through six inches. – Addition of sizes 1-5/8"" and 1-7/8"". – Redefined lag screw thread to be consistent with the way all ot