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Cross recessed raised countersunk head tapping screws

Q 277

Display drawing:

汽标代号Q 277 Q277 277Q Cross recessed raised countersunk head tapping screws
Screw Thread
d
ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3
P Pitch
dk Theory max
Actual value max
min
k max
Socket No.
1.1 1.3 1.4 1.6 1.8 1.8
6.3 8.2 9.4 10.4 11.5 12.6
5.5 7.3 8.4 9.3 10.3 11.3
5.2 6.9 8 8.9 9.9 10.9
1.7 2.35 2.6 2.8 3 3.15
1 2 2 2 3 3

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Type I Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 28]
46 Type I Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 28] [ASME]
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47 Type I Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 28] [ASME]
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Type I Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 28]
48 Type IA Cross Recessed Oval Countersunk Head Tapping Screws - Type AB Thread Forming [Table 22] [ASME]
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49 Type II Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 30] [ASME]
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