245Pcs Bonded Sealing Washers, Nbr Metric Zinc-Plated Steel Self-Centred, M30 Product Details ?FUNCTION?Daptemn 245pcs metric zinc-plated steel self-centred rubber seal washer combination box, is suitable for cars, ships, engines, oil pipelines, gas control, faucet seal repair with silicone seal washers. ?INTERNAL SIZE?Assorted oil drain plug gasket set internal diameter:?6 (6mm/0.24" ), ?8 (8mm/0.35" ), ?10 (10mm/0.39" ), ?12 (12mm/0.47" ), ?14 (14mm/0.55" ), ?16 (16mm/0.63" ), ?18 (18mm/0.71" ), ?20 (20mm/0.79" ), ?22 (22mm/0.87" ), ?24 (24mm/0.94" ), ?27(27mm/1.06"), ?30(30mm/1.18"). ?OUTER SIZE ?Assorted o ring kit set outer diameter: M6 (9mm/0.35"), M8 (13mm/0.51"), M10 (15mm/0.59"), M12 (17mm/0.67"), M14 (19mm/0.75"), M16 (21mm/0.83"), M18 (24mm/0.94"), M20 (27mm/1.06"), M22 (29mm/1.14"), M24 (31mm/1.22"), M27(34.5mm/1.35"), M30(37.6mm/1.48"). ?SPECIFICATION ?Bonded seal washer has: M6 (25pcs ), M8 (25pcs ), M10 (25pcs ), M12 (25pcs ), M14 (25pcs ), M16 (20pcs ), M18 (20pcs ), M20 (20pcs ), M22 (20pcs ), M24 (15pcs ), M27 (15pcs ), M30 (10pcs ), a total of 245 pcs. ?MATERIAL?NBR O-ring is made of zinc-plated steel gasket and rubber, with oil as medium, for sealing threaded pipe joints and plugs. The working pressure is 400KA/CM (39.2MPA), and the working temperature is between -30C - 120C. A washer is a part that is placed between the connecting piece and the nut. ?HIGH QUALITY?High pressure tubing half pack assembly gasket complete specifications, not easy to rust, oil resistance, wear resistance, pressure resistance, wate proof long service life. The hardness is 2 times higher than that of copper gasketand 10 times higher than that of aluminum gasket. ?PURPOSE?Used for: oil pipeline system as a medium, used for welding, mechanical devices, to prevent oil, fuel, water, medicine leakage. Crush washer assortment are color cod by size, eliminating the hassle of matching sizes. ?AFTER SALE ?If there is a quality question, please feel free to contact us, I will do my best to solve your problem as soon as possible, until you are satisfied. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.