Long Hex Coupling Nut Plain Carbon Steel Thread Rod Connecting Nut

Long Hex Coupling Nut Plain Carbon Steel Thread Rod Connecting Nut is a core threaded fastener specially designed for connecting two segments of full thread rods. The six-sided elongated body of Long Hex Coupling Nut Plain Carbon Steel Thread Rod Connecting Nut provides stable clamping points for open-end wrenches and socket wrenches, eliminating slipping risks during installation. The plain carbon steel surface undergoes natural black oxide without extra electroplating, which cuts extra processing cost for general industrial assembly scenes. Ningbo Gangtong Zheli Fasteners Co., Ltd. adopts national standard carbon steel bar raw material to produce this coupling nut, and the raw material tensile strength reaches 420MPa, meeting the basic load demand of mechanical frame connection.

Internal Thread Processing Advantage

The internal full thread of Long Hex Coupling Nut Plain Carbon Steel Thread Rod Connecting Nut is processed by precision rolling thread technology, with thread tolerance controlled within 6H grade, which can perfectly match standard all-thread rods without thread jamming. The full penetration thread structure of the coupling nut realizes uniform stress distribution when bearing tension, and the effective thread engagement length can account for more than 90% of the whole nut body length. Ningbo Gangtong Zheli Fasteners Co., Ltd. equips 12 sets of automatic thread rolling machines to finish the thread working procedure, ensuring consistent thread precision of each batch of products.

Applicable Scenarios & Size Selection

Long Hex Coupling Nut Plain Carbon Steel Thread Rod Connecting Nut fits widely in pipeline support frames, mechanical equipment stands, light steel construction connecting parts and warehouse shelf assembly. Multiple effective length options are available for this coupling nut, covering conventional industrial connection demands; customers can choose matching length according to the reserved gap between two thread rods. The plain carbon steel material of the coupling nut suits indoor dry working environments, and users can select galvanized or stainless steel surface customized versions if anti-corrosion performance is required.

Quality Inspection Standard

Every batch of Long Hex Coupling Nut Plain Carbon Steel Thread Rod Connecting Nut will pass three key inspection procedures: raw material composition test, thread fit test and tensile load test. The finished coupling nut can bear minimum tensile load corresponding to matching thread specification without thread sliding or nut cracking. All inspection records will be filed for 12 months to support customer quality traceability, and customized surface treatment and length adjustment services are acceptable for bulk orders.