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  • Grisham 4 in. One-Way Screws for Security Bar Window Guard (4-Pack)
  • Grisham 4 in. One-Way Screws for Security Bar Window Guard (4-Pack)
  • Grisham 4 in. One-Way Screws for Security Bar Window Guard (4-Pack)
  • Grisham 4 in. One-Way Screws for Security Bar Window Guard (4-Pack)

Grisham 4 in. One-Way Screws for Security Bar Window Guard (4-Pack)

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The Grisham 4 in. one-way screw (4-pack) features a black powder-coated finish for weather durability. For use with all Grisham spearpoint window bar mounting brackets or fastener applications where possible tampering could occur. The non-reversing safety screw design inhibits removal of the fastener.