Tapered Thread Coupler

We are offering tapered thread coupler.
hbly tapered thread coupler
the tapered thread coupler can be used to connect rebar of hrb335/400,φ16mm-φ40mm.the mechanical property of the joint can meet requirements of standard: aci318-89,aci359-86,aci349-89,bs8110-97,din1045. Meanwhile,according to requirements of chinese standard jgj107-96 the mechanical property of joint can reach grade a
the parameter of coupler:
size：16,18,20,22,25,28,32,36,40
o d(mm)：25,28,30,32,35,39,44,48,52
thread(x2.5)：m17，m19，m21，m23，m26，m29，m33，m37，m41
length(mm)：50,60,70,80,85,90,100,110,120
taper degree：6°
the material of the splicing coupler is carbon constructional quality steel of no.45