Flat Square Recess AB Self Tapping Screws
Tapping screws are another kind of high quality screw we carry. Tapping screws are commonly used for attaching steel or wood parts, but are also used to fasten plastic parts together. Like all Liberty Fastener screws, tapping screws come in a variety of sizes, models and finishes.
- Manufactured to SAE J933 specifications (threads to ASME B18.6.4)
- Case Hardened to Rockwell C45 min. (Core Hardness: Rockwell C28-38)
- Fully Threaded / Steel Zinc Plated
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