BS 325:1947 PDF

What is BS 325 - Black cup and countersunk bolts and nuts about?

Nuts and bolts are designed to work so that they strengthen whatever they are holding together. BS 325 focuses on the black cup and countersunk bolts and nuts. BS 325 provides specifications for black cup and countersunk bolts and nuts. BS 325 provides you with dimension specifications for black cup square neck bolts, black cup oval neck bolts, black cup nibbed bolts for iron and steel work, black countersunk nibbed bolts and countersunk round bolts, black countersunk square neck bolts for iron and steel work, black countersunk square neck bolts for woodwork, black hexagon and square nuts. BS 325 also specifies lengths of thread and the...