Mardatt 30Pcs M6 Well Nut Expansion Nuts and 304 Stainless Steel Screw Rubber and Steel Parts Windscreen Nuts Accessories for Motorcycle Kayak Boats ◎Product Specification:Material: 304 stainless steel screwSize:install hole: M6*5.5mm ◎Product Features:[Long Service Time]: Neoprene well nut and 304 stainless steel screw, effectively prevent the intrusion of moisture, dust and static electricity in the natural environment. [Sealing Design]：The flanged head design keeps the whole assembly in place. It is easy to install most standard propellers, which ensures that the propellers are firmly connected to kayaking.[Easy to Install]: ①Simply tightening a threaded screw into the nut②Place well-nut vertically insert into the pre-drilled hole to secure the fixing.[Huge Function]: Greatly sealing accessories, bear pressure, absorbing vibration and noise isolation. [Ideal Assortment]: Our neoprene well nut kits can be used on thin plates or on hard materials, which elastic design can play a very good fastening effect.[Strong Compatibility]: Suitable for Kayaks, Canoes, Boats, and other marine. And also perfect for other industrial needed well nuts with screws.Product Details:15 pcs------M6 neoprene well nut15 pcs------M6 *30 screwstotally 30pcs