3M™ Dual Lock™ Reclosable Fastener SJ3252, Die-Cut Piece Part, Stem Density 400, Black

3M™ Dual Lock™ Reclosable Fastener SJ3252 Die-Cut Piece Part is a 38mm square reclosable fastener with a rigid polypropylene backing and two holes for screws or rivets. It has a stem density of 400 stems per square inch. The mushroom-shaped stems interlock to supply very high tensile strength and replace mechanical fasteners in many applications.

Convenient Assembly and Re-Assembly for Automotive Trim Ideal for attaching automotive trim components, our 3M™ Dual Lock™ Reclosable Fastener SJ3252 Die-Cut Piece Part provides a high-strength closure that is easy to assemble and just as easy to open and reclose in high cycle applications. Moreover, the pieces audibly snap together with a satisfying click to form a secure, dependable and repeatable attachment. Designed with hundreds of interlocking mushroom-shaped stems, this polypropylene fastener can replace conventional attachments such as screws or adhesives, which can be time-consuming to fit and assemble, may weaken the part, or are susceptible to vibration and weather extremes. Dual Lock fasteners are constructed with polyolefin stems and hold tight regardless of high heat, cold, moisture or humidity. These fasteners are also an excellent attachment solution when vibration is an issue – not only do the fasteners hold tight, but actually reduce vibration and rattling. Additional Features include: Quick attachment to second fastener with no drilling or additional tools required Hidden attachment avoids unsightly mechanical fasteners on the show surface High temperature and solvent resistance Mushroom heads that allow flexibility in alignment for easy attachment of components Can be used to attach components before they enter the final assembly plant, thus helping to reduce the number of parts and the length of assembly time Combinations of stem densities and the engaged area provide adjustable and proportional engagement and disengagement forces An audible snap confirms that the part is correctly installed with minimal insertion force required by the assembly worker How It Works This die-cut fastener is designed to be screwed or riveted to a base where attachment is desired. It is supplied with a counter sunk hole for easy attachment using pan-head screws, pop-in rivets, or an ultrasonically stacked post. The head of the screw or