Product Description: Commercial Quality Great for Restaurant or Home Special Description: Screw size / pitch of the nozzle rear is 5/16 UNF thread, 24 TPI 4 air holes on sides of nozzle, 4mm in diameter each The orifice is 1.0mm Replacement Tips, Natural Gas, for 23 / 32 Jet Burner Sold by 6 pcs Shipping Costs: We ship this item within 1 day. In the USA shipping will be taking 1 - 10 business days. International shipping will be taking 2 – 4 weeks. International buyers are responsible for any customs and duties taxes. Refund or Exchange: All return require Carry Supply pre-authorization, must be made within 14 days of receive, in original condition with packaging (New and Unused), and subject to 30% restocking charge. Exchange or refund. Buyer responsible for return shipping fee. We shall not be liable for any merchandise defects, spoilage of products, loss of sales, or consequential damages.