Brief:A bolt is a form of threaded fastener with an external male thread. Bolts are thus closely related to, and often confused with, screws. A hex cap screw is a cap screw with a hexagonal head, designed to be driven by a wrench (spanner). An ASME B18.2.1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head height and the shank length. The nature of the tolerance difference allows an ASMEB18.2.1 hex cap screw to always fit where a hex bolt is installed but a hex bolt could be slightly too large to be used where a hex cap screw is designed in.
Brief:type:Arming Bolt Min Order: 10000pcs Sample: Free sample Certificate: MTC, Test report Export country: Asia, Middle East, Europe, America and so on Package:Caton+Pallet standard:DIN,ASTM/ASME,JIS,EN,ISO,AS,GB