... Pitch:2.5mm,3.0mm,3.5mm splicing rebar connection sleeve Materials: 45# carbon steel. Specifications: D14mm-40mm. ... Usege: rebar splicingISO:9001 NameValueBrandLangruiModelLRThread Pitch2.5mm,3.0mm,3 ... screw on the enlarged end.Third, use one rebar coupler to connect two rebar ends. rebar coupler,sleeve,splicing rebar connection sleeve