ASME B18.6.1-1981 (R2016)

This Standard covers the complete general and dimensional data for the various types of slotted and recessed head wood screws recognized as American National Standard.  Also included are appendices which provide specifications and instructions for penetration gaging and wobble gaging of recessed head screws; documentation for screw head types relegated to non-preferred status; and formulas on which dimensional data are based. It shall be understood, however, that where questions arise concerning acceptance of product, the dimensions given in the tables shall govern over recalculation by formula. The inclusion of dimensional data in this standard is not intended to imply that all of the products described are stock production sizes. Consumers should consult with manufacturers concerning the availability of products.