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Large Hex Head Tapping Screws
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Large Hex Head Tapping Screws
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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.
A slight rounding of all edges and corners of the hex surfaces of indented hex heads shall be permissible, provided the diameter of the bearing circle is equal to no less than 90% of the specified minimum width across flats dimension.
Unless otherwise specified by purchaser, regular hex heads shall be furnished, and both regular and large head styles may be of indented head, trimmed head, or fully upset head construction, at the option of manufacturer.
Dimensions across flats and across corners of the head shall be measured at the point of maximum metal. Taper of sides of hex (angle between one side and the axis) shall not exceed 2° or 0.004", whichever is greater, the specified width across flats being the large dimension.
The rounding due to lack of fill on all six corners of the head shall be reasonably uniform and the width across corners of the head shall be such that when a sharp ring having an inside diameter equal to the specified minimum width across corners is placed on the top and bottom of the head, the head shall protrude by an amount equal to, or greater than, the F value tabulated. See Appendix II for across corners gaging of hex heads.
Large hex head is intended for screw and washer assemblies - SEMS, as specified in ASME B18.1 and other applications requiring large bearing.
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Results 1 - 18 of 18
1
Item #
Description
Nominal Size or Basic Screw Dia.
Max. (A)
Min. (W)
Max. (H)
Min. (F)
LHHTS00730XXX
Large Hex Head Tapping Screw, with 0.0730" Nominal Dia.
No. 1
N/A
N/A
0.044
in
0.022
in
LHHTS00860XXX
Large Hex Head Tapping Screw, with 0.0860" Nominal Dia.
No. 2
N/A
N/A
0.050
in
0.024
in
LHHTS00990XXX
Large Hex Head Tapping Screw, with 0.0990" Nominal Dia.
No. 3
N/A
N/A
0.055
in
0.026
in
LHHTS01120XXX
Large Hex Head Tapping Screw, with 0.1120" Nominal Dia.
No. 4
0.219
in
0.238
in
0.060
in
0.029
in
LHHTS01250XXX
Large Hex Head Tapping Screw, with 0.1250" Nominal Dia.
No. 5
0.250
in
0.272
in
0.070
in
0.035
in
LHHTS01380XXX
Large Hex Head Tapping Screw, with 0.1380" Nominal Dia.
No. 6
N/A
N/A
0.093
in
0.048
in
LHHTS01510XXX
Large Hex Head Tapping Screw, with 0.1510" Nominal Dia.
No. 7
N/A
N/A
0.093
in
0.048
in
LHHTS01640XXX
Large Hex Head Tapping Screw, with 0.1640" Nominal Dia.
No. 8
0.312
in
0.340
in
0.110
in
0.058
in
LHHTS01900XXX
Large Hex Head Tapping Screw, with 0.1900" Nominal Dia.
No. 10
N/A
N/A
0.120
in
0.063
in
LHHTS02160XXX
Large Hex Head Tapping Screw, with 0.2160" Nominal Dia.
No. 12
0.375
in
0.409
in
0.155
in
0.083
in
LHHTS02420XXX
Large Hex Head Tapping Screw, with 0.2420" Nominal Dia.
No. 14
0.438
in
0.477
in
0.190
in
0.103
in
LHHTS02500XXX
Large Hex Head Tapping Screw, with 0.2500" Nominal Dia.
1/4
in
0.438
in
0.477
in
0.190
in
0.103
in
LHHTS03125XXX
Large Hex Head Tapping Screw, with 0.3125" Nominal Dia.
5/16
in
N/A
N/A
0.230
in
0.125
in
LHHTS03200XXX
Large Hex Head Tapping Screw, with 0.3200" Nominal Dia.
No. 20
N/A
N/A
0.230
in
0.125
in
LHHTS03720XXX
Large Hex Head Tapping Screw, with 0.3720" Nominal Dia.
No. 24
N/A
N/A
0.295
in
0.162
in
LHHTS03750XXX
Large Hex Head Tapping Screw, with 0.3750" Nominal Dia.
3/8
in
N/A
N/A
0.295
in
0.162
in
LHHTS04375XXX
Large Hex Head Tapping Screw, with 0.4375" Nominal Dia.
7/16
in
N/A
N/A
0.348
in
0.193
in
LHHTS05000XXX
Large Hex Head Tapping Screw, with 0.5000" Nominal Dia.
1/2
in
N/A
N/A
0.400
in
0.220
in
Results 1 - 18 of 18
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