KNOTT spherical collar bolt, M14 x 1,5 x 25 mm across flats 19
The KNOTT ball seat bolt is a wheel bolt for rims with a spherical seat on trailer axles. The ball seat centres the wheel in the rim bore during tightening.
Ball seat and taper seat bolts are not interchangeable; the seat shape must match the rim. When changing between steel and aluminium rims, check the thread length. Tighten wheel bolts crosswise to the specified torque and re-torque them after the first few kilometres.
- M14 x 1,5
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