![]() ![]() Nutplates used in composite structures usually require three holes: two for attachment of the nutplate and one for the removable screw, although rivetless nut plates and adhesive bonded nutplates are available that do not require drilling and countersinking two extra holes. Screws and Nutplates in Composite StructuresThe use of screws and nutplates in place of Hi-Loks® or blind fasteners is recommended if a panel must be removed periodically for maintenance. CHERRY® Aerospace CSR9 Cherry Hollow End E-Z Buck 100° Flush Shear Head 40 KSI Shear Rivet - 100/Pack > View Details SGP106657-X100 CSR9 Our Price: 246.00 > 488.00 Add to Cart Product Attributes Country of Origin United States Size 100 Pack Shipping Weight 0. The composite fastener provides good material compatibility with carbon fiber and fiberglass. The strength of fiberlite fasteners is equivalent to aluminum at two-thirds the weight. The fiberlite fastening system uses composite materials for a wide range of aerospace hardware. ![]() ![]() Austenitic stainless steels, superalloys (e.g., A286), multiphase alloys (e.g., MP35N or MP159), and nickel alloys (e.g., alloy 718) also appear to be very compatible with carbon fiber composites. Composites reinforced with carbon fibers, however, are quite cathodic when used with materials, such as aluminum or cadmium, the latter of which is a common plating used on fasteners for corrosion protection.įastener MaterialsTitanium alloy Ti-6Al-4V is the most common alloy for fasteners used with carbon fiber reinforced composite structures. The main differences between fasteners for metal and composite structures are the materials and the footprint diameter of nuts and collars.Ĭorrosion PrecautionsNeither fiberglass nor Kevlar® fiber-reinforced composites cause corrosion problems when used with most fastener materials. Many companies make specialty fasteners for composite structures and several types of fasteners are commonly used: threaded fasteners, lock bolts, blind bolts, blind rivets, and specialty fasteners for soft structures, such as honeycomb panels. ![]()
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