L.H.Dottie® Hex Head Tap Bolt, Low Carbon Steel, 5/8"-11 x 3-3/4", 25 Pack

M8-1.25X45 DIN 6921 Class 8 Point 8 Metric Flange Bolt Screw Zinc Rohs. Hex flange head provides extra surface area similar to washer.

Hanger bolts are designed to hang wiring and ceiling hooks into wooden structures. They are manufactured with lag threads and a pointed tip on one end and standard machine threads and a blunt tip on the other. It is made up of Carbon Steel. Special Features: Headless Self Tapping Lag Screw Thread Opposite End Machine Screw Threads

5/16-18X2 1/2 Serrated Hex Flanged Washer indented U/C Full Thread Scr Case Hard Zinc Bake. Indented hex washer head offers advantages of hex head, plus greater protection to mating surface.

Hex flange bolts are used when a hex washer head bolt is needed to spread clamping force over a larger surface area.

Silicon Bronze Hex Head Tap Bolts are used with silicon bronze nuts and washers when fastening machinery/equipment in non-critical applications. They are a corrosion resistance and temperature resistance alloy, making them the superior choice over brass for marine applications. They can also be used where good electrical conductivity is needed such as for grounding applications. Special Features: Corrosion Resistance Harder than Brass Tolerates Extreme Temperatures