BS 7670-1:1993

Steel nuts and bolts for resistance projection welding. Specification for dimensions and properties|Nuts, Bolts, Welding, Projections, Electric welding, Resistance welding, Steels, Fasteners, Threaded fasteners, Internal-thread fasteners, External-thread fasteners, Projection welding, Welded joints, Welded fittings, Low-carbon steels, Threads, Thread pitch, Size, Dimensions, Designations, Square-head fasteners, Hexagonal-head fasteners, Finishes, Surface treatment, Welding equipment Click the banner to get it at ONLY: GBP98.00