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3745-20CN200 Tanged Non-Locking Insert

SKU: 29065 | MPN: 3745-20CN200
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Details

Specifications
Thread SizeM20X1.5
CoatingNo Finish
Wire Insert SeriesNon-Locking
Wire Insert TypeTanged
MaterialStainless Steel
Material304 Stainless Steel
Length Nominal Dia.1 Dia.
Material SpecificationAS7245
Number of Free Coils10-3/4
Free Coil Diameter Min.23.15 mm
Free Coil Diameter Max.24.00 mm
Finish Specificationn/a
 
Drilling Data
Minimum Drilling Depth for Bottoming Taps26.00 mm
Minimum Drilling Depth for Plug Taps29.00 mm
Drilling InformationThe minimum drilling depths shown below allow for the following recommended practices: 1. Countersinking the drilled hole to prevent a feather edge at the start of the tapped hole. 2. 3/4 - 1-1/2 pitch of insert "set-down" to allow for maximum production tolerance. Dimensions are shown for both plug and bottoming taps. (Note: Plug taps M8 and smaller have a male center and the drilled hole depth dimensions allow for this length (one half of the diameter of the holt). Calculation of dimension "F" is as follows: For Plug Taps M8 and smaller: F = Insert Nominal Length (Q) + .5 (Bolt Nominal Diameter) + 4P (Tap Chamfer) + 1P (allowance for countersink and maximum insert set-down). For Plug Taps M10 and larger: F = Insert Nominal Length(Q) + 4P (Tap Chamfer) + 1P (allowance for countersink and maximum insert set-down). For Bottoming Taps: F = Insert Nominal Length (Q) + 2P (Tap Chamfer) + 1P (allowance for countersink and maximum insert set-down).
 
Tapping Data
Countersink Diameter Min.22.40 mm
Countersink Diameter Max.21.80 mm
Pitch Diameter Min.20.97 mm
Pitch Diameter Max. ~ Class of Fit 4H_mm21.07 mm
Pitch Diameter Max. ~ Class of Fit 5H_mm21.10 mm
Minimum Tapping Depth21.50 mm
Tap Major Diameter Max.22.13 mm
 
Reference
Aerospace Standard Part NumberMA3279-122