400 Synthetic Dual Lock Fasteners3M™ Synthetic Rubber Dual Lock™ Reclosable Fastener Type 400 has 400 stems per square inch (approximately 62 stems per square centimeter). |  |
| *Starting Price | | *$130.82 | | 400 stems per square inch. Black, polypropylene reclosable fastener with a black foam adhesive and white polyethylene film liner. High tensile strength, good temperature resistance, 0.23 in (5.8 mm) engaged thickness. | |  |
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