5/8-11 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (90)

8 x 1 5/8 Simpson Bugle-Head Wood Decking Screws - 6-Lobe Drive 305 SS - 1 lbs Pack (150)

Less breakage

nylon insert locknuts can be reused more times than a two-way reversible nut

High degree of corrosion resistance

5/16-18 x 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (1950) #8 6-Lobe Flat-Head Simpson Deck-Drive DWP Wood Screws 316 Stainless Steel 5/8-11 x 4 Grade 85 16 18 x 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (1950). Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum of