5/16"-18 X 1/2" Hex Cap Screw 18-8 Stainless Steel

Our 5/16"-18 X 1/2" Hex Cap Screw 18-8 Stainless Steel is a rugged and corrosion-resistant fastener crafted from 18-8 stainless steel, offering excellent strength and durability for a wide range of applications. Designed with a hex head for easy torque control and a cap screw profile for precision fastening, these screws are ideal for construction, machinery, and general-purpose use in both indoor and outdoor environments. Not the screw you're looking for? At Springs Fastener, we offer 5/16"-18 X 1/2" Hex Cap Screw 18-8 Stainless Steel in flexible quantities to suit everything from large-scale operations to one-off projects—all with competitive pricing, dependable shipping, and responsive customer support. Looking for more options? Browse our full lineup of hex head cap screws, explore our broader cap screw selection, or view all available screw types to find the perfect match for your job.