A fixture (300, 400), such as a dental fixture, for insertion into a bore hole arranged in bone tissue, the fixture (300, 400) having a geometrical central axis and comprising a leading portion (302, 402) provided with at least one cutting edge for creating a female thread in the bone tissue, and a trailing portion (304, 404) following the leading portion (302, 402) in the created female thread, wherein both of said portions comprise a respective outer surface being threaded for engagement with bone tissue, wherein thread tops and thread bottoms are provided alternatingly in the axial direction of the fixture (300, 400), each thread top forming part of a thread peak (310a, 310b, 312, 410a, 410b) arranged between two consecutive thread bottoms (414, 416a, 416b), wherein a largest thread peak (310a, 410a) of said cutting edge of the leading portion (302, 402) forms part of a thread having a lead, wherein compared with an imaginary continuation into the trailing portion (304, 404) of said largest thread peak following said lead: a first area of a thread peak (310b, 410b) of the trailing portion (304, 404) is axially aligned with said imaginary continuation, and a second area of said thread peak (310b, 410b) of the trailing portion (304, 404) is axially displaced compared with said imaginary continuation, thereby providing a strain to the bone when said thread peak (310b, 410b) of the trailing portion (304, 404) engages with the created female thread, the comparison of the thread peaks (310a, 310b, 410a, 410b) being made at a same first distance from a respective thread bottom measured perpendicularly to said central axis, and/or at a same second distance from a respective thread top measured perpendicularly to said central axis, wherein said largest thread peak (310a, 410a) of said cutting edge of the leading portion (302, 402) forms part of a thread having a lead defining a first helical path in the leading portion (302, 402), wherein said thread peak (310b, 410b) of the trailing portion (304, 404) forms part of a thread having a lead defining a second helical path which is partly axially displaced relative to an imaginary extension into the trailing portion (304, 404) of the first helical path. a first area of a thread peak (310b, 410b) of the trailing portion (304, 404) is axially aligned with said imaginary continuation, and a second area of said thread peak (310b, 410b) of the trailing portion (304, 404) is axially displaced compared with said imaginary continuation, thereby providing a strain to the bone when said thread peak (310b, 410b) of the trailing portion (304, 404) engages with the created female thread, the comparison of the thread peaks (310a, 310b, 410a, 410b) being made at a same first distance from a respective thread bottom measured perpendicularly to said central axis, and/or at a same second distance from a respective thread top measured perpendicularly to said central axis, wherein said largest thread peak (310a, 410a) of said cutting edge of the leading portion (302, 402) forms part of a thread having a lead defining a first helical path in the leading portion (302, 402), wherein said thread peak (310b, 410b) of the trailing portion (304, 404) forms part of a thread having a lead defining a second helical path which is partly axially displaced relative to an imaginary extension into the trailing portion (304, 404) of the first helical path.