  We perform a global fit of parton distribution functions (PDFs) together with
the strong coupling constant $\alpha_s$ and the quark masses $m_c$, $m_b$ and
$m_t$ at next-to-leading order (NLO) in QCD. The analysis applies the
$\overline{\mathrm{MS}}\, $ renormalization scheme for $\alpha_s$ and all quark
masses. It is performed in the fixed-flavor number scheme for $n_f=3, 4, 5$ and
uses the same data as the previous fit of the ABMP16 PDF at
next-to-next-to-leading order (NNLO). The new NLO PDFs complement the set of
ABMP16 PDFs and are to be used consistently with NLO QCD predictions for hard
scattering processes. At NLO we obtain the value $\alpha_s^{(n_f=5)}(M_Z) =
0.1191 \pm 0.0011$ compared to $\alpha_s^{(n_f=5)}(M_Z) = 0.1147 \pm 0.0008$ at
NNLO.
