Wixim Bus Bar Insulator Screw Set 2pcs for SM-20 to SM-30 (SKU SCREW-SM20-30) is a Wixim bus bar insulator sold by LCT Trading in the Philippines for ₱7.20, in stock. Order it online with no account; LCT confirms stock, the total and delivery by phone. Pay cash on delivery or by bank deposit; store pickup is free.