Half Threaded hex head bolt.Bolts are often used to make a bolted joint. This is a combination of the nut applying an axial clamping force and also the shank of the bolt acting as a dowel, pinning the joint against sideways shear forces. For this reason, many bolts have a plain unthreaded shank (called the grip length) as this makes for a better, stronger dowel. The presence of the unthreaded shank has often been given as characteristic of bolts vs. screws, but this is incidental to its use, rather than defining.available sizes from M3 - M64.Materials we work with - STAINLESS STEEL - AISI 304, AISI 304L, AISI 304H, AISI 310, AISI 316, AISI 316L, AISI 317, AISI 317L, AISI 321, AISI 904, AISI 904L, AISI 3108, AISI 15-5ph, AISI 17-4ph, Alloy 20, Nitronic 50, Nitronic 60.DUPLEX STEEL - DUPLEX 2205, DUPLEX 2304, DUPLEX S31803, DUPLEX S32205, URANUS 45N.SUPER DUPLEX - Alloy 2507, Ferralium 255, UNS S32750, UNS S32760, Zeron 100.MONEL - Monel 400, Monel R405, Monel K500.INCONEL - Inconel 600, Inconel 601, Inconel 625, Inconel 718, Inconel 925.INCOLOY - Incoloy 800, Incoloy 800H, Incoloy 825, Incoloy 800 HT.HASTELLOY - Hastelloy B2, Hastelloy B3, Hastelloy C22, Hastelloy C276, Hastelloy C2000, Hastelloy G30, Hastelloy X.TITANIUM - Grade 1, Grade 2, Grade 7, GRADE 9, Ti 6Al-4V (Grade 5), Ti 5Al-2.5Sn (Grade 6), Ti 3Al 2.5 (Grade 12), Ti 6AL-4V ELI (Grade 23).Nickel - Nickel 200, Nickel 201.Silicon Bronze - Alloy 65100, Alloy 65500.Copper Nickel - Alloy C70600, Alloy C71500.Aluminium Bronze - Alloy C61300, Alloy C61400, Alloy C61900, Alloy C62300, Alloy C63000, Alloy C63200, Alloy C64200, Alloy C95400, Alloy C95600. Phosphor Bronze - Alloy C51000, Alloy C51900, Alloy C52100, Alloy C54400.Brass - Brass Alloy C22000, Brass Alloy C26000, Brass Alloy C27000, Brass Alloy C27400, Brass Alloy C36000, Brass Alloy C37710, Brass Alloy C69400.