本公司生产经营各种规格的钻杆锁接头，可根据用户需要提供各种钻杆锁接头毛坯和成品。接头选用优质合金钢制造，经特殊热处理，具有强度高、韧性好、使用寿命长的特点。螺纹表面经镀铜或磷化处理，机械性能达到SY/T 5290和API Spec7的要求。    钻杆接头规格：Ф65-Ф168    接头材质：40Cr 、45Mn2、35CrMo、37CrMnMo等、钻杆锁接头参数表钻杆接头代号规格和类型标称质量钢极内、外螺纹接头外径外螺文接头内径内、外螺纹接头台肩倒角直径外螺纹接头大钳空间内螺纹接头大钳空间内、外螺纹接头焊颈直径NC262 3/8 EU9.90E7585.744.4582.95177.8203.265.09X9585.744.4582.95177.8203.265.09G10585.744.4582.95177.8203.265.09NC312 7/8 EU15.49E75104.853.98100.41177.8228.680.96X95104.850.80100.41177.8228.680.96G105104.850.80100.41177.8228.680.96S135111.141.28100.41177.8228.680.96NC383 1/2 EU14.15E75120.776.20116.28203.2266.798.43NC383 1/2 EU19.8123.09E75120.768.26116.28203.2266.798.43X95127.065.09116.28203.2266.798.43G105127.061.91116.28203.2266.798.43S135127.053.98116.28203.2266.798.43E75127.065.09116.28203.2266.798.43X95127.061.91116.28203.2266.798.43G105127.053.98116.28203.2266.798.43NC403 1/2 EU 4IU23.0920.85S135139.757.15127.40177.8254.098.43E75133.471.44127.40177.8254.0106.36X95133.468.26127.40177.8254.0106.36G105139.761.91127.40177.8254.0106.36S135139.750.80127.40177.8254.0106.36NC464EU20.85E75152.482.55145.26177.8254.0114.30X95154.482.55145.26177.8254.0114.30G105152.482.55145.26177.8254.0114.30S135152.476.20145.26177.8254.0114.30?4 1/2 IU 4 1/2IEU20.4824.73E75152.485.73145.26177.8254.0119.06E75158.885.22145.26177.8254.0119.06X95158.876.20145.26177.8254.0119.06G105158.876.20145.26177.8254.0119.06S135158.869.85145.26177.8254.0119.06