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1185-4CNW250 Tanged Non-Locking Insert

SKU: 04662 | MPN: 1185-4CNW250
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3678Bolingbrook
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Details

Specifications
Thread Size1/4-20
CoatingDry Film Lubricant
Wire Insert SeriesNon-Locking
Wire Insert TypeTanged
MaterialStainless Steel
Material304 Stainless Steel
Length Nominal Dia.1 Dia.
Material SpecificationAS7245
Number of Free Coils3-3/8
Free Coil Diameter Min..310 in
Free Coil Diameter Max..330 in
Finish SpecificationAS5272 (Type I)
Finish AppearanceDark Gray to Black
 
Drilling Data
Suggested Drill Size ~ AluminumH
Suggested Drill Size ~ Steel, Magnesium, PlasticH
Minimum Drilling Depth for Bottoming Taps.450 in
Minimum Drilling Depth for Plug Taps.675 in
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 5/16"" 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 5/16"" 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 3/8"" 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..310 in
Countersink Diameter Max..340 in
Pitch Diameter Min..282 in
Pitch Diameter Max. ~ Class of Fit 3B_in.285 in
Pitch Diameter Max. ~ Class of Fit 2B_in.286 in
Minimum Tapping Depth.300 in
Tap Major Diameter Max..319 in
 
Taps & Gages
Tap High Spiral Flute Bottoming 2B6905-4
Tap High Spiral Flute Bottoming 3B5905-4
Tap Roughingn/a
Tap Spiral Point Plug 2B4CSA
Tap Spiral Point Plug 3B4CSB
Tap Straight Flute Bottoming 2B4CBA
Tap Straight Flute Bottoming 3B4CBB
Tap Straight Flute Plug 2B4CPA
Tap Straight Flute Plug 3B4CPB
Reference Gage 2B1440-4
Reference Gage 3B1688-4
Working Gage 2B3688-4
Working Gage 3B1442-4