3M™ Dual Lock™ Reclosable Fastener SJ3781 is a black, polypropylene reclosable fastener roll good with pressure-sensitive adhesive. This fastener is available in a number widths and has a stem density of 250 stems per square inch.3M Dual Lock Reclosable Fastener SJ3781 is a black, roll good with a pressure-sensitive adhesive and a stem density of 250. Dual Lock fastener SJ3781 overcomes the often difficult alignment and installation problems of screws and hidden fasteners, offering simple installation with no additional tools required. 3M Dual Lock Reclosable Fasteners are positive-locking, blind fasteners designed for attaching automotive trim components. The products feature mushroom-shaped polyolefin stems that snap together, forming a high tensile closure. Dual Lock fasteners are used primarily to secure rigid and semi-rigid surfaces such as trim or door panels, instrument panel bezels, headliners and other automotive interior and exterior trim.
Audibly snaps together to form a secure
Can attach components before entering final assembly plant
Can be opened and re-closed in high cycle applications
dependable and repeatable attachment
Does not require any special tools or processing equipment for installation
helping to reduce parts and assembly time
Hidden component attachment enables clean show surface
Interlocking
Mates with other stem densities to achieve a variety of engagement and disengagement forces
mushroom heads allow flexibility in alignment for easy attachment of components
Strong holding power reduces component rattling and vibration
