Abstract： ASME B18.3:2012 pdf download.Socket Cap,Shoulder, Set Screws, and Hex Keys(Inch Series). (C) The conformance of screws to shank straightness or canter limitations set forth as D in Table 6 shall be checked by the use of the procedures and t...

ASME B18.3:2012 pdf download.Socket Cap,Shoulder, Set Screws, and Hex Keys(Inch Series).

(C) The conformance of screws to shank straightness or canter limitations set forth as D in Table 6 shall be checked by the use of the procedures and typical gage illustrated in ASME 81t2.9.

(8) Fef For all lengths of screws, the form of the underhead fillet shall be optional, as depicted In the illustration above Tables 2 and 3, provided it Is a smooth and continuous concave curve fainng into the bearing surface of the head, and the screw shank is

within the envelope established by the limits for fillet extension, length, and juncture radius specified in Tables 2 and 3.

(9) Lerçfh The length of the screw shall be measured parallel to the axis of the screw from the plane of the bearing surface under the head to the plane of the flat of the point, The portion of the screw contained within dimension L is commonly called the

shirt. The basic length dimension on the product shall be the nominal length expressed as a two-placed decimal.

(10) All other characteristics are the same as Notes (3) through (6), (8), (13), (14). and (18) through (21) of Table 1 for socket head cap screws,

(EXCEPTIONS: Since these are not full-size socket screw products, the mechanical requirements of ASTM AS74 will not apply)

(11) The minimum tensile requirements for Alloy Steel low Head Socket Cap Screws are the same as for Alloy Steel Socket Button Cap Screws, for the same length and diameter, as per ASTM F835.

(12) To promote uniformity and understanding In communications relating to products conforming to this Standard, it is recommended that Hexagon low Head Socket Cap Screws be designated In accordance with the following data, preferably in the

sequence shown.

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