We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Twelve black one-inch square fastener pieces in a pack

Scotch

Scotch Extreme Fastener Squares Black 12-pack RFD7021

SKU CH-1YFY-5XABP

Heavy-duty reclosable squares hold tarps, signs, tools and solar lights with dual-lock strength

  • Product typeAdhesive Tapes
  • Product colorBlack
  • Reclosable dual-lock design enables repeated opening and closing
  • Heavy-duty permanent adhesive bonds tarps, metal signs and tools
  • 12 squares provide multiple mounting points for indoor or outdoor use
  • Black colour matches dark surfaces for discreet installations
  • Made in Japan to Scotch quality standards

Heavy-Duty Fastener Squares

These 12 black fastener squares use dual-lock technology to create a strong, reclosable bond for demanding mounting tasks. They are designed for permanent indoor and outdoor applications where traditional adhesives or mechanical fasteners may fail. The squares provide a gravity-defying hold for heavy objects without the need for power tools.

Ideal for Tarps, Signs and Tools

Builders and DIYers securing tarps, metal signs, solar lights or heavy wall decor will appreciate the instant, tool-free installation. Users needing a single-use bond, a clear fastener, or a solution for lightweight paper and fabric crafts should consider alternative adhesive types not offered in this heavy-duty format.

Sustained Load Performance

The dual-lock design maintains its grip under continuous tension from heavy items like mounted tools or framed art. Unlike standard hook-and-loop strips that can creep or release over time, these squares resist shear and peel forces reliably in both indoor and outdoor environments.

How it compares

Measured against everything we stock in Glues, Tapes & Fasteners, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 93% of the 702 comparable items (median $13.99).

Specifications

Product
Product typeAdhesive Tapes
Product colorBlack

Questions about this item

What surface must be clean and dry before I apply these 1 in. x 1 in. squares?

The mounting surface should be clean, dry and free of dust or grease so the adhesive bonds securely.

Can I attach these squares to a painted wall without damaging the paint when I remove them?

The adhesive is permanent; removing the squares will likely peel paint or leave residue on painted surfaces.

How do I confirm the dual-lock squares are fully engaged after pressing them together?

You will hear a distinct snap and feel firm resistance when the mushroom-shaped stems interlock correctly.

More in Glues, Tapes & Fasteners

Similar items