1/2-13 x 3/4 Type F Thread Cutting Screws / Unslotted / Hex Washer Head / Steel / Zinc (Quantity: 600 pcs)
Description
Hex Washer Unslotted Type F Thread Cutting Screws -A thread cutting screw with machine screw thread with blunt tapered point having multi - cutting edges and chip cavities. For heavy gauge sheet metal aluminum zinc and lead die castings cast iron brass and plastic. Manufactured to ASME B18.6.3 & SAE J933 specifications Case Hardened to Rockwell C45 min. (Core Hardness: Rockwell C28-38) Fully Threaded
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