1/4 x 4 Aggre-Gator® 300 Series Stainless Bi-Metal Masonry Fasteners, Hex Washer Head, 5/16 Hex Driver, 18-8 Stainless Steel Head & Shank with Hardened Steel Tapping Threads and Gimlet Point, Silver Stalgard GB Coating - 50/BX
ELC EML365 1/4" x 4" Hex Washer HD Aggre-Gator Threaded Concrete
Anchor Stainless Body Hardened Point Silver 50 - Box
Aggre-Gator fasteners bring the corrosion resistance of 300 series stainless
steel and the efficiency of hardened steel tapping threads together in one
unique fastener. The head and shank of the fastener are manufactured from 300
series stainless steel, while the tapping threads and gimlet point are fused
and hardened steel.