Home / Shop / Refractory / Insulation Pin Connector Insulation Pin Connector SKU: 10001266 Category: Refractory Tags: Needle, Rebar Description Description This is a square, self locking washer at is used to secure ceramic fabric refractory to steel plate. Contact info@arcticboilers.com for pricing Related products DUKAST 2500B Uni-Ram, B2 Plaster, wet DUKAST 3000B Cerablanket, Ceramic Wool Refractory, 1×24 inch