“This standard is no longer an American National Standard or an ASME-approved standard. It is available for historical reference only.”

This Standard covers the general and dimensional data for metric formed hex screws recognized as American National Standard.  Formed hex screws are cold formed products with fully upset (non-trimmed) heads.  Formed hex screws are standard only in sizes M5 thru M24, with lengths up to 150 mm, or 10 times nominal screw size, whichever is shorter.  The inclusion of dimensional data in this standard is not intended to imply that all of the sizes in conjunction with the various options described herein are stock items.  Consumers are requested to consult with manufacturers concerning lists of stock production formed hex screws.