In the world of construction and manufacturing, not every bolt needs to hold a skyscraper together. Sometimes, you need a reliable, cost-effective, and ductile fastener for light-duty applications. Enter —the most widely used specification for low-carbon steel bolts in general engineering.
ASTM A307 Grade A bolts are manufactured from (typically 1018 or similar). There is no mandatory heat treatment, which keeps the manufacturing process simple and the product inexpensive.