DIN 7 dowel pin, 4 x 40 mm, h6 tolerance, Article number 7A104040H6. Made in stainless steel a1. Dowel Pin manufactured to DIN 7. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution. Applications: positioning, alignment and locking of machine elements, shafts and fittings in machine building, plant maintenance and marine equipment.