Hex head cap screws , used to join two or more parts together, come in different sizes and grades . Steel hex cap screws range in diameter from 1/4 inch to 1 1/2 inches (0.6 to 3.8 centimeters) and from 3/8 inch to 24 inches (1 to 61 centimeters) in length; however, the very short sizes heree in wide diameters, and the very long sizes heree in thin sizes. Socket head cap screw markings 1 Converted from megapascals (MPa) Inch has one strength level, alloy steel. Metric has two strength levels, property classes 12.9 and 8.8. 8.8 is about 30% weaker. 8.8 is also 20 – 50% less expensive. Caution: Don’t substitute 8.8 for 12.9. Choose from our selection of grade 8 cap screws , including high-strength steel hex head screws , steel thread-locking hex head screws , and more. In stock and ready to ship. Contact Us .

Discover Bolts , Screws Cap Screws and other Fasteners at MSC Industrial Supply. Over 1 million products that ship and deliver fast. Login Cart0. Help. Chat. About Us. Search: . M6x1.00 Metric Coarse Hex Socket Drive, Socket Cap Screw - Grade 12.9 Alloy Steel, Black Oxide Finish, Fully Threaded, 20mm Length Under Head Socket head cap screws heremonly used in machine assembly, especially for removable panels and parts. They have a round cap with a hex head and are tightened with a socket wrench drive. Choose the right cap head for your specific application. Grade 8 Socket Head Cap Screws. Fastener Warehouse is a wholesale distributor of industrial grade fasteners and construction supplies for Construction, Industrial, Marine, and Auto Industries.

DIN 912 / ISO 4762 Socket Cap Screw Grade 12.9 . Alternatives: 8.