3M™ Dual Lock™ Resealable Click Strap SJ3870
Harmonization Code : 3926909790 |

Main features
- Black, interlocking mushroom-shaped heads (250 stem density per square inch)
- Mates with Type 170, Type 250 or Type 400 stem densities
- Black, modified acrylic
Product Description
3M™ Dual Lock™ Reclosable Fastener SJ3870 is a high-strength, reclosable fastening system designed as an alternative to traditional mechanical fasteners such as screws, nuts, and bolts. It features black, interlocking mushroom-shaped stems mounted on a very conformable foam tape with a modified acrylic adhesive. This construction enables strong bonding to a variety of substrates, including metals, powder-coated paints, and plastics, while accommodating surface irregularities.
Product Key Features
- Interlocking mushroom-shaped heads provide secure, repeatable attachment
- 250 stem density
- Conformable foam tape adapts to uneven or textured surfaces for improved contact
- Bonds well to metals, powder-coated paints, and plastics such as acrylic, polycarbonate, and ABS
- Mates with Type 170, 250, or 400 stem densities for varied fastening strength
Applications
- Replacing screws, bolts, and other mechanical fastening methods
- Mounting panels, covers, and access components
- Bonding to powder-coated or irregular surfaces
- Securing displays, signage, and decorative elements
- Assembly in electronics, appliances, and industrial equipment
- Applications requiring repeated attachment and removal
Technical Specifications
General Properties
ColorColor
BlackTotal ThicknessTotal Thickness
6100 μm





















