Class 8 is medium-strength steel with higher ductility and workability, which is used on most varieties of equipment. Carriage bolts fasten metallic sections to metal elements or metal to wood. They have got shallow semi-round heads and either a sq. or ribbed (ridged) neck under the head to prevent turning https://band-for-iwatch-781346.isblog.net/not-known-details-about-car-nuts-45430834