Hillman 3 8 16 x 3 in. Stainless Steel Hex Head Cap Screw, 25 Pack Steel Screws Coarse Thread Grip: SAE coarse Item Weight:.625 Coarse Thread Grip: SAE coarse threads for quick assembly and strong engagement Durable Protection: Prefinished with a scratch resistant wear layer to handle daily wear and tear Specification Details Brand Hillman Product Type Hex Head Cap Screw Thread Size 3 8 16 Length 3 in Material 18 8 Stainless Steel Finish Stainless Steel Thread Type Coarse Head Type Hex Cap Shank Partially threaded (USS) along shank Washer Face Washer face under head Pieces per Pack 25 Packaging Type Boxed Use With Nut or tapped hole Q: What material and finish are they