FIELD: machine building.
SUBSTANCE: invention relates to spacer dowel. Expanding dowel comprises dowel housing (20) and bolt (10). Bolt (10) has expanding element (12), which when displaced relative to housing (20) of dowel in direction of drawing (101) exerts pressure radially outward on housing (20) of dowel. An expansion-preventing element (12) is provided with an anticorrosive protective layer (61) and sliding-improving layer (62) which covers the anticorrosive protective layer (61). Anticorrosive protective layer (61) is nickel-zinc (Zn/Ni) or iron zinc (Zn/Fe) coating, which is performed by galvanic deposition.
EFFECT: design of an easy-to-manufacture and yet especially reliable and powerful spacer dowel with possibility of its versatile application.
8 cl, 5 dwg
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