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Silicone pull plug for .409" diameter holes. Gray color coding. Dimensions A-.409, B-1.000, C-1.000, D-.191. 250 count per bag, rated to 600F for powder coating masking of larger bore holes.
The SPP60 fits .409" diameter holes. The 1.000" head and 1.000" body give this plug symmetrical proportions for consistent seating. The .191" flange thickness creates a sturdy seal rim that resists lifting during thermal expansion in the cure oven.
The .409" plug requires more silicone material per unit than smaller sizes. The 250ct count keeps the bag price manageable while still providing enough plugs for production runs. For high-volume .409" hole masking, order multiple bags to maintain supply.
The .409" dimension falls between 13/32" (.4063") and 27/64" (.4219"). It is a common size for specific engineering applications including sensor ports, hydraulic fittings, and custom bore holes. The SPP60 taper compresses to seal this exact diameter.
The SPP60 fits .409" holes with a 1.000" head, while the SPP437 fits .437" holes with a 1.500" head. The SPP60 is more compact and works for holes just under 7/16". The SPP437 extends deeper at 1.500" body length for thicker material applications.
The Pull Plug SPP60 (250ct) for .409" holes is priced at $56.22 (SKU SPP60). Ships in stock from Creative Coating Solutions. Gray silicone, 600F rated, 250 reusable plugs per bag. 1.000" head and body for balanced, reliable sealing.