Complete thread tooth type, pass gauge need go throughsmoothly,and stop gauge must stop in two thread tooth.
The thread thooth type surface is smooth and can not have burr.
Can not have short of a tooth, broken tooth, , partial tooth andany defects which can effect on the quality

Our company rebar splicing coupler has high connecting strength,high speed of connecting , high construction efficiency
Save material, save energy efficiency, economic advantages. Rebarsplicing coupelr can be applicable to all kinds of rebar connectionprojects .
Our company rebar splicing coupler pass inspection of the nationalconstruction engineering quality supervision and inspection center.
All items meet the standards. It is manufacture by performance  is not less the 45 carbon structural steel tomanufacture ,
Its mechanical properties, chemical composition can Conform toGB699 standards.
The standard value of rebar couler yield strength and tensilestrength is more than 1.10 times of standard of  Correspondingsteel  bearing capacity
The tensile strength of rebar splicing coupler is higher than thetensile strength of base metal . and is higher than 0.9 times ofmeasured value of tensile strength of base metal . the threadprecision is according to the provision GB197, The rebar couplerinside thread 6H grade ,
thread head 7 g grade, tooth type surface roughness is according toGB/T1031 regulation, Ra value of 6.3 um, the rest of theprocessing  parts surface roughness Ra value of 12.5 um.anti-embroidered Surface treatment , No rust, oil, cracks, blackand other defects
screw holes at both ends is protected by plastic plug