What is the difference between a hex bolt and a hex cap screw?
The primary difference between a bolt and a cap screw is the way in which they are installed. A hex cap screw is inserted by twisting the head of the bolt to assemble and tighten, whereas a bolt is installed by turning a nut to tighten the fastener.
What standards do these hex head cap screws comply with?
These machine screws adhere to AN, ASME, ASTM, CSA, DIN, EHEDG, FDA, Federal Specifications, IFI, ISO, JIS, Military Specifications, MS90728-10, NAS, SAE and UL standards.