The 4" screws feature a durable

and has been manufactured in the USA for superior quality assurance

3/4-16 x 2 1/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (120)

9/16-18 x 3 Grade 5 Hex Cap Screw Plain Domestic USA (150)

If you need a reliable type 1 heavy hex bolt with a hot-dipped galvanized coating

1/2-13 x 2 1/4 A325 Type 1 Heavy Hex Bolt Plain Domestic (USA) - Bulk Keg (1190) 1/2-13 Hex Tap Bolts Silicon Bronze The 4" screws feature aThis 1 2 13 x 2 1 4 A325 Type 1 Heavy Hex Bolt is crafted from high grade domestic steel for superior strength and durability. This pack includes 1190 bolts, perfect for large projects. All hardware meets ASTM A325 Type 1 specs.