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Step 29: Holt Head Tamper-Proof

Picture of Holt Head Tamper-Proof
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[[br]]This patented drive provides the perfect tamper-proof assembly. Theft-proof and decorative, yet inexpensive. Special drivers available for field removal or power driven assembly machines. The unique tri wing slots starting out from the center and are sloped and not flat perpendicular to the drive.[[br]]
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