The Allen bolt is integral to the crank and remains in it when the crank is removed from the spindle...
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We the Sarveshwar Industries are Manufacturer of MS Nuts, High Tensile Nuts, High Tensile Bolts, Flange Nuts, Hex weld Nut,Square weld nut, lock nuts and MS Hex Bolts, Our Manufacturing Facility is Situated at Veraval-Shapar (Gujarat) India. We cater the needs of buyer pan India.