Type 2 Cross Recessed Close Tolerance 100 deg Flat Countersunk Head Machine Screws - Fine UNF

Standard ASME B18.6.3-2003
Description Type 2 Cross Recessed Close Tolerance 100 deg Flat Countersunk Head Machine Screw, ASME B18.6.3, No. 4 - 48 x 0.125
Part number ASME B18.6.3 - T2 CRCT100DFCHMS - UNF - NS No. 4 x L 0.125 - TL 0.125
Product selection
Selector Nominal Size Basic Screw Diameter (inch) A Max. - Head Diameter (inch) A Min. - Head Diameter (inch) H Ref. - Head Height (inch) M Ref. - Recess Diameter (inch) T Ref. - Recess Depth (inch) N Ref. - Recess Width (inch) Recess Penetration Gaging Depth Max. (inch) Recess Penetration Gaging Depth Min. (inch) F Max. - Protrusion Above Gaging Diameter (inch) F Min. - Protrusion Above Gaging Diameter (inch) G - Gaging Diameter (inch)
1 No. 4 0.112 0.212 0.188 0.049 0.131 0.07 0.029 0.051 0.036 0.025 0.019 0.167
2 No. 6 0.138 0.262 0.235 0.06 0.157 0.086 0.033 0.068 0.051 0.028 0.021 0.214
3 No. 8 0.164 0.312 0.282 0.072 0.185 0.102 0.037 0.086 0.067 0.031 0.023 0.261
4 No. 10 0.19 0.362 0.329 0.083 0.219 0.122 0.042 0.109 0.087 0.034 0.026 0.307
5 1/4 0.25 0.477 0.437 0.11 0.288 0.164 0.053 0.154 0.132 0.04 0.031 0.415
6 5/16 0.3125 0.597 0.55 0.138 0.355 0.207 0.063 0.197 0.175 0.047 0.037 0.526
7 3/8 0.375 0.717 0.662 0.165 0.433 0.258 0.075 0.249 0.226 0.053 0.042 0.638
8 7/16 0.4375 0.837 0.774 0.193 0.496 0.302 0.085 0.292 0.269 0.06 0.047 0.75
9 1/2 0.5 0.957 0.887 0.221 0.555 0.338 0.093 0.328 0.304 0.066 0.053 0.862
10 9/16 0.5625 1.077 1 0.249 0.628 0.385 0.104 0.376 0.352 0.073 0.058 0.974
11 5/8 0.625 1.197 1.112 0.276 0.687 0.424 0.113 0.415 0.39 0.08 0.063 1.086
Nominal Size
Basic Screw Diameter (inch)
A Max. - Head Diameter (inch)
A Min. - Head Diameter (inch)
H Ref. - Head Height (inch)
M Ref. - Recess Diameter (inch)
T Ref. - Recess Depth (inch)
N Ref. - Recess Width (inch)
Recess Penetration Gaging Depth Max. (inch)
Recess Penetration Gaging Depth Min. (inch)
F Max. - Protrusion Above Gaging Diameter (inch)
F Min. - Protrusion Above Gaging Diameter (inch)
G - Gaging Diameter (inch)
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