---
product_id: 788703646
title: "Dual Lock Fastener SJ3550 400 Heavy Duty Mounting Tape, 10 Pack Resealable Self Connecting Fasteners SJ3550 400 Black for Indoor and Outdoor Use"
brand: "upwoktem"
price: "₨21590"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/788703646-dual-lock-fastener-sj3550-400-heavy-duty-mounting-tape-10
store_origin: LK
region: Sri Lanka
---

# 40 kg/m² tensile strength 250 interlocking stems/sq inch 1000 reseal cycles durability Dual Lock Fastener SJ3550 400 Heavy Duty Mounting Tape, 10 Pack Resealable Self Connecting Fasteners SJ3550 400 Black for Indoor and Outdoor Use

**Brand:** upwoktem
**Price:** ₨21590
**Availability:** ✅ In Stock

## Summary

> 🔗 Lock it. Snap it. Own your space.

## Quick Answers

- **What is this?** Dual Lock Fastener SJ3550 400 Heavy Duty Mounting Tape, 10 Pack Resealable Self Connecting Fasteners SJ3550 400 Black for Indoor and Outdoor Use by upwoktem
- **How much does it cost?** ₨21590 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/788703646-dual-lock-fastener-sj3550-400-heavy-duty-mounting-tape-10)

## Best For

- upwoktem enthusiasts

## Why This Product

- Trusted upwoktem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Strength:** 5x tensile power with mushroom-shaped stems for rock-solid hold
- • **Damage-Free Mounting:** Say goodbye to screws and bolts—secure your gear without surface damage
- • **Versatile Durability:** Weatherproof and heat resistant up to 104°C for indoor/outdoor use
- • **Effortless Reusability:** Reseals up to 1,000 times—no tools, no mess, just snap & go
- • **Universal Compatibility:** Pairs seamlessly with 170, 250, or 400 type fasteners for custom thickness

## Overview

The 3M SJ3550 Dual Lock 400 is a heavy-duty, resealable fastening system featuring 250 interlocking mushroom stems per square inch, delivering 40 kg/m² tensile strength and up to 1,000 reuse cycles. Designed for both indoor and outdoor applications, it offers a durable, damage-free alternative to traditional fasteners, withstanding temperatures up to 104°C and compatible with multiple fastener types for versatile mounting solutions.

## Description

Full description not available

## Features

- 【3M SJ3550 Dual Lock 400 Resealable Closure】The 3M Dual Lock Closure itself is a resealable fastening system with interlocking mushroom shaped stems that provide a strong bond when squeezed. There are 250 stems per square inch, an engaged thickness of 1/4 inch (230 mil), and a closure life of 1,000. Tensile strength: 40 kg/m².
- 【Designed for tough applications】: The 250 type fasteners can be combined with 170, 250 or 400 type fasteners (the higher the combined number, the greater the fastener thickness). Interlocking self pairing mushroom shaped heads have 5 times the tensile strength of products. The rated temperature of car and truck windscreens is 104 C
- 【DAMAGE-FREE INSTANT ATTACHMENT】Clear 3M resealable dual lock closure provides advanced closure alternatives to screws, snaps, hooks, bolts and more. No tools, no mess, just a firm bond in seconds. Suitable for use in different environments. Ideal choice for removable components.
- Build to last: Dual Lock adopts a special adhesive on the back, which provides a stable and long-lasting grip effect.
- USE ANYWHERE With high strength and water resistance, these fasteners are the ultimate organizational tool for mounting, hanging, storing, or securing items indoors or outdoors. Garage, RV, laundry room, car, drone accessories, etc

## Product Details

- **Brand:** UPwoktem
- **Colour:** black
- **Material:** Nylon
- **Size:** M
- **Style:** Compact

## Images

![Dual Lock Fastener SJ3550 400 Heavy Duty Mounting Tape, 10 Pack Resealable Self Connecting Fasteners SJ3550 400 Black for Indoor and Outdoor Use - Image 1](https://m.media-amazon.com/images/I/71g5CxKNs-L.jpg)
![Dual Lock Fastener SJ3550 400 Heavy Duty Mounting Tape, 10 Pack Resealable Self Connecting Fasteners SJ3550 400 Black for Indoor and Outdoor Use - Image 2](https://m.media-amazon.com/images/I/81Rx-xl87lL.jpg)
![Dual Lock Fastener SJ3550 400 Heavy Duty Mounting Tape, 10 Pack Resealable Self Connecting Fasteners SJ3550 400 Black for Indoor and Outdoor Use - Image 3](https://m.media-amazon.com/images/I/71HlVvKFs9L.jpg)
![Dual Lock Fastener SJ3550 400 Heavy Duty Mounting Tape, 10 Pack Resealable Self Connecting Fasteners SJ3550 400 Black for Indoor and Outdoor Use - Image 4](https://m.media-amazon.com/images/I/71qDeE6aFaL.jpg)
![Dual Lock Fastener SJ3550 400 Heavy Duty Mounting Tape, 10 Pack Resealable Self Connecting Fasteners SJ3550 400 Black for Indoor and Outdoor Use - Image 5](https://m.media-amazon.com/images/I/7101qHOXlcL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Dual Lock Reclosable Fastener, EZ Pass Holder, 1'' x 2'' Heavy Duty Mounting Tape, 10PCS Reclosable Self Mating Interlocking Tape SJ3550 400 Black for Indoor/Outdoor
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**Shop now:** [https://www.desertcart.lk/products/788703646-dual-lock-fastener-sj3550-400-heavy-duty-mounting-tape-10](https://www.desertcart.lk/products/788703646-dual-lock-fastener-sj3550-400-heavy-duty-mounting-tape-10)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-26*