• Nominal Size. Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
  • Length. The length of the screw shall be measured overall, parallel to the axis of the screw. The basic length dimension on the product shall be the nominal length expressed as a two-place decimal.
Unit of Measure

Manufacturer

Manufacturer

Industrial Fasteners Institute

Specifications

Product

Socket Screws

Unit of Measure

English

Type

Half Dog Point

Nominal Size or Basic Screw Diameter

No. 8

Nominal Size or Basic Screw Diameter (Decimal)

0.1640 in

Nom. Hexagon Socket Size (J)

5/64 in

Nom. Hexagon Socket Size Decimal (J)

0.078 in

Nom. No. of Splines

6

Nom. Spline Socket Size Decimal (M)

0.096 in

Hex Socket TH Min. Key Engagement to Develop Functional Capability of Key (T)

0.090 in

Spline Socket Ts Min. Key Engagement to Develop Functional Capability of Key (T)

0.080 in

Max. Half Dog Point Diameter (P)

0.109 in

Min. Half Dog Point Diameter (P)

0.103 in

Max. Half Dog Point Length (Q)

0.043 in

Min. Half Dog Point Length (Q)

0.037 in

Half Dog Point Shortest Optimum Nominal Length to Which TH Applies (B)

0.25 in

Half Dog Point Shortest Optimum Nominal Length to Which Ts Applies (B1)

0.25 in

Codes and Standards

Codes and Standards

ASME B18.3 2002
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