Made of 100% top quality standard 18-8 stainless steel (100 pieces per pack) .164" thread diameter, .32" head diameter, 3/4" long (measured from underneath the head) For use with sheet metal, wood, plastic or even plexi glass applications. Also good for plastic wall anchors. Resistant to rust and corrosion. (For coastal/marine environments please use our grade 316 stainless option. Another quality Marine Bolt Supply fastener! These #8 x 3/4" screws are the standard for stainless steel applications. They are resistant to rust and corrosion in most environments. For coastal or marine applications please use the Marine Bolt Supply type 316 stainless option. These screws are fully threaded and have a #2 phillips drive head. They are 1" long (length does not include the head) Refer to pictures for all measurements.