... support UL appoved NYLON-66 ,fireproof grade 94-2 Product Detailed Descriptionpcb fasteners & post support 0311ksh1)mateial: UL appoved ... grade 94-22)color: nature3)feature:As a fastener of pc board and other equipments,good Insulation,4)specifications: ... ferrules,PCB fasteners ,standoff and connectors ,protectional spacers and holders of LED lamp,rubber & silicone feet ,suction cups,nylon washer ...