Viadon's flange caps are ideal for masking studs or bolts and a circular area around them, typically for grounding purposes. Alternatively, try using flange caps as a plug - the area around a hole can then masked by the flange (for instance, where a washer might need to be). Several standard sizes available – come in 1” lengths. These caps are capable of withstanding temperatures up to 600°F / 315°C.

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