3M™ Dual Lock™ Reclosable Fastener SJ3221, Pop-In Piece Part, Stem Density 250, Black, 20 mm x 20 mm
3M™ Dual Lock™ Reclosable Fastener SJ3221 is a black, polypropylene reclosable fastener with a pop-in square top, a single disk base and a stem density of 250 stems per square inch.
Mushroom heads allow flexibility in alignment for easy attachment of components.
Can be opened and re-closed in high cycle applications.
Provides hidden component attachment, preventing disruption on the show surface.
Strong holding power reduces the rattling and vibration of components.
Does not require any special tools or processing equipment.
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
Audibly snaps together to form a secure, dependable and repeatable attachment.
3M™ Dual Lock™ Reclosable Fasteners Pop-In Parts attach without the use of pressure sensitive adhesive, and come with a variety of bases that can be inserted into holes of precise dimension. They are easy to install and require no special equipment or skills.
Engaged Thickness Range (metric) 8.86 to 9.42 Millimetre
Hole Type Key Hole Slot
Insertion Force Low
Manufacturing Segment Interior, Exterior
Panel Thickness Range 2.5 to 2.8 Millimetre
Piece Parts Type Pop-In
Post Length 5 Millimetre
Product Form Piece
Pull Out Force 91 - 93 Pound
Stem Area 20 x 20 Millimetre
Stem Color Black
Stem Density 250