ChinaSelfDrillingAnchorCouplerManufacturs Product Introduction The couplers are used to extend the self-drilling hollow bars. Self-drilling anchor couplings are used to link anchor bars to make the anchor longer, thus promote its installation depth. 聽 Product Parameter Thread SizeLength(mm)Out Diameter(mm)Unit Weight(kg) R25150.036.00.6 R32145.042.00.7 160.042.00.8 190.042.00.9 R38180.051.01.4 220.051.01.7 R51140.063.01.4 200.063.02.0 T76220.095.04.7 T30105.538.00.42 T40140.054.01.1 140.057.01.3 T52160.070.02.4 T73235.089.03.7 245.095.05.7 T103255.0123.07.5 290.0132.012.5 T127255.0139.07.5 Steel gradeAs per request Thread directionLeft hand / Right hand Thread standardISO 10208 / ISO 1720 / Other international standards Hardness (HRC)HRC25~HRC30 聽 Product photo 聽聽聽聽 Features All are designed with middle stop, O ring are available as per request. 聽 Certifications 聽 6.Package: In wooden box. 聽聽 Company Exhibition 聽 Factory & Company Overview 聽 FAQ Q: Is it all right to make customer's own brand name? A: Yes, we have a flexible business model, providing OEM services 聽 Q: Are you a manufacture? A: Yes, we have 2 plants to manufacture a wide range of drilling products, including DTH drilling tools, TH (top hammer) drilling tools, Self-drilling anchoring (SDA) tools and drag bits. Meanwhile, for some items we do not produce in our own plants, we are authorized distributors by some brands, like G brand of TH (top hammer) drill rods. So we are a one-stop supplier of a wide range of rock drilling products. 聽 Q: "Does your product have warranty service? How long is the warranty period?" A: For our all products we offer warranty that covers all manufacturing defects in materials and workmanship. The longest period of warranty is 2 years after shipping date. 聽 Q: How long is the delivery period of the product? A: Depending on the product you ordered, the production time is around 25 to 35 days. 聽 Q: What quality certifications do you have? A: By the end of 2021, we have following qualifications: ISO 9001 management system; ISO45001 occupational Health and Safety Management System; 3AA2 credit rating by Dun & Bradstreet; Honoring Contract and Keeping Promise Enterprise by AIC; EC examination certificate for self-drilling anchor bars; 3 invention patents & 10 utility patents. 聽ChinaSelfDrillingAnchorCouplerManufacturs website:http://www.metanchor.com.cn/self-drilling-anchor-coupler/