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Spanner (Snake Eye) Truss Head Sheet Metal Screws
Tamper Proof Security Screws with a Truss Head and a Spanner Security (Snake Eye) Drive
Spanner truss head sheet metal screws screws are used for securing materials from being tampered with. The spanner drive style is unusual making it almost immune to tampering without the matching bit. They feature an undercut head with an oversized, low profile domed top. This oversized head style creates a larger surface area, allowing for a wider distribution of force (the screw is less likely to be pulled through the fastened material). Truss Head Sheet Metal Screws feature cutting threads and a sharp point.
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