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  • Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
  • Applicable to screw types as indicated by code symbols.
    Type AB thread forming.
    Types B and BP thread forming and Types BF and BT thread cutting.
    Type C thread forming, Appendix; and Types D, F, G, and T thread cutting.
  • No tolerance for gaging diameter is given. If the gaging diameter of the gage used differs from tabulated value, the protrusion will be affected accordingly and the proper protrusion values must be recalculated using the formulas shown in Appendix.
This type of recess consists of two intersecting slots with parallel sides converging to a slightly truncated apex at bottom of recess.
Type II Cross Recessed Oval Countersunk Trim Head Tapping Screws
Unit of Measure
1 

Item #

Description

Nominal Size or Basic Screw Dia.

Head Size

Ref. (M)

Ref. (T)

Ref. (N)

Max. Recess Penetration Gaging Depth

item-3083 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.133" Recess Dia. N/A No. 4 N/A 3 N/A 0.133 in N/A 0.072 in N/A 0.030 in N/A 0.053 in
item-3084 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.151" Recess Dia. N/A No. 5 N/A 4 N/A 0.151 in N/A 0.082 in N/A 0.032 in N/A 0.064 in
item-3085 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.151" Recess Dia. N/A No. 6 N/A 4 N/A 0.151 in N/A 0.082 in N/A 0.032 in N/A 0.064 in
item-3086 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.169" Recess Dia. N/A No. 6 N/A 5 N/A 0.169 in N/A 0.094 in N/A 0.035 in N/A 0.077 in
item-3087 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.169" Recess Dia. N/A No. 8 N/A 5 N/A 0.169 in N/A 0.094 in N/A 0.035 in N/A 0.077 in
item-3088 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.188" Recess Dia. N/A No. 8 N/A 6 N/A 0.188 in N/A 0.106 in N/A 0.038 in N/A 0.089 in
item-3089 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.224" Recess Dia. N/A No. 10 N/A 8 N/A 0.224 in N/A 0.124 in N/A 0.043 in N/A 0.113 in
item-3090 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.224" Recess Dia. N/A No. 12 N/A 8 N/A 0.224 in N/A 0.124 in N/A 0.043 in N/A 0.113 in
item-3091 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.260" Recess Dia. N/A No. 12 N/A 10 N/A 0.260 in N/A 0.148 in N/A 0.048 in N/A 0.137 in
item-3092 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.260" Recess Dia. N/A No. 14 N/A 10 N/A 0.260 in N/A 0.148 in N/A 0.048 in N/A 0.137 in
item-3093 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.297" Recess Dia. N/A No. 14 N/A 12 N/A 0.297 in N/A 0.172 in N/A 0.054 in N/A 0.162 in
item-3094 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.260" Recess Dia. N/A 1/4 in N/A 10 N/A 0.260 in N/A 0.148 in N/A 0.048 in N/A 0.137 in
item-3095 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.297" Recess Dia. N/A 1/4 in N/A 12 N/A 0.297 in N/A 0.172 in N/A 0.054 in N/A 0.162 in
item-3096 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.297" Recess Dia. N/A 5/16 in N/A 12 N/A 0.297 in N/A 0.172 in N/A 0.054 in N/A 0.162 in
item-3097 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.344" Recess Dia. N/A 5/16 in N/A 1/4 in N/A 0.344 in N/A 0.195 in N/A 0.061 in N/A 0.193 in
item-3098 N/A Type II Cross Recessed Oval Countersunk Trim Head Tapping Screw, with 0.432" Recess Dia. N/A 3/8 in N/A 5/16 in N/A 0.432 in N/A 0.252 in N/A 0.074 in N/A 0.251 in
Unit of Measure
1