SM‑FS Wrench‑Flat Sucker Rod Coupling

The SM FS wrench flat coupling is manufactured strictly in accordance with API Spec 11B 28th Edition. The integrated wrench flat design makes on-site assembly and disassembly much easier, and this Wrench Flat Couplings serves as a key component for oilfield pumping systems. Multiple Material Grade options including TC, TA, TS, HA and HS are available. Bare metal finish and Sprayed Metal Couplings wear-resistant coating are optional surface treatments. Available sizes cover 5/8", 3/4", 7/8", 1", 1-1/8". As one type of Sucker Rod Couplings, it fits conventional wells and Slimhole Couplings application scenarios, and can be matched with transition subs and Polished Rod Couplings. Precision machined threads deliver great anti-fatigue and anti-loosening capability, capable of enduring long-term reciprocating loads in deep wells. Ideal for new well construction, old well renovation and composite sucker rod assembly projects. All products pass strict inspections before shipment. Bulk su…