For all masonry materials. Specially hardened high-low thread actually cuts thread into masonry materials. A simple 2-step operation, drill then drive. Tappers may be removed and re-inserted in the same hole. Clamshell packaging.
| Thread Diameter | 1/4 In. |
| Length | 2-3/4 In. |
| Head Type | Slotted Hex Washer |
| Material | Steel |
| Finish | Corrossion-Resistant Blue Climaseal |
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