Why can’t I select deburring for my part?

Our deburring services are provided at no-cost for all eligible parts. If your part meets our requirements for deburring it will be automatically selected at check out. If deburring is not an option, it could be for several reasons:

  • Size: Deburring is only available for parts that are at least 3″ in length on their longest axis, and less than 24″ on their shortest axis.
  • Material: Deburring is not available for any steel products (mild steel, HR, AR, Cor-Ten, 4130, 1095, etc).
  • Thickness: We require a minimum thickness of .040″ for titanium, copper and brass, and .059″ (1.5mm) for other materials.

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Flush Standoff, 4-40, .250" Zinc plus Clear Chromate

SKU SO-440-8
Thread Size 4-40 x .250″
Hole size in sheet (+0.003/-.0.000) .168″
Minimum sheet thickness 0.040″
Maximum sheet thickness .125″
Fastener material Steel
Minimum distance hole C/L to edge 0.230″
When determining the distance between two or more fasteners, you can calculate the distance by the formula, C/L to edge + 1/2 the diameter of the second mounting hole. .345″
Recommended panel material Steel/Aluminum
Coating type Zinc
Length .250″
Aluminum material ranges (5052, 6061, 7075) 0.040″-0.125″
Steel material ranges (CRS, HRPO, HR) 0.048″-0.119″