What is a Hex Coupling Nut?
A coupling nut, also known as extension nut, is a threaded fastener for joining two male threads, most commonly a threaded rod, but also pipes. The outside of the fastener is usually a hex so a wrench can hold it. Variations include reducing coupling nuts, for joining two different size threads; sight hole coupling nuts, which have a sight hole for observing the amount of engagement; and coupling nuts with left-handed threads. Coupling nuts, also called extension nuts, are used to join two threaded rods or pipes, including threaded rods or pipes of different sizes. Usually constructed in a hex shape for wrench hold, the most common uses for coupling nuts include tightening rod assemblies or to pushing a completed rod assembly outward. Coupling nuts are used to make up long tie rod assemblies from shorter lengths of rod and to facilitate assembly of two fasteners or fittings which both have external threads.
Inspection & Testing of Hex Coupling Nut
- Mechanical Testing Such as Tensile of Area, Hardness Test, Positive Material Identification – PMI Testing, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test.
Metline is a professional manufacturers, suppliers and exporters of hex coupling nut in India. We produce and forge hex coupling nut to specifications of ASTM A563, ASTM A5944, ASTM A182, ASTM A194 B6/B7, ASTM A320 L7/L7A etc. We ensure that the clients get the best product at the cheapest cost from us. We make sure that the order is delivered at the right time in the right place. We have built trust over the years for our best quality services and always look forward to build ling term business relationship with our clients. We are committed to quality and service.
Materials (All Grades)
Stainless Steel: Grade: ASTM 182 , ASTM 193, ASTM 194, B8 (304), B8C (SS347), B8M (SS316), B8T (SS321), A2, A4, 304 / 304L / 304H, 310, 310S, 316 / 316L / 316H / 316 Ti, 317 / 317L, 321 / 321H, A193 B8T 347 / 347 H, 431, 410
Carbon Steel: Grade: ASTM 193, ASTM 194, B6, B7/ B7M, B16, 2, 2HM, 2H, Gr6, B7, B7M
Alloy Steel: Grade: ASTM 320 L7, L7A, L7B, L7C, L70, L71, L72, L73
Brass: Grade: C270000
Naval Brass: Grade: C46200, C46400
Copper: Grade: 110
Duplex & Super Duplex: Grade: S31803, S32205
Aluminium: Grade: C61300, C61400, C63000, C64200
Hastelloy: Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
Incoloy: Grade: Incoloy 800, Inconel 800H, 800HT
Inconel: Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
Monel: Grade: Monel 400, Monel K500, Monel R-405
High Tensile Bolt: Grade: 9.8, 12.9, 10.9, 19.9.3
CUPRO-Nickel: Grade: 710, 715
Nickel Alloy: Grade: UNS 2200 (Nickel 200) / UNS 2201 (Nickel 201), UNS 4400 (Monel 400), UNS 8825 (Inconel 825), UNS 6600 (Inconel 600) / UNS 6601 (Inconel 601), UNS 6625 (Inconel 625),UNS 10276 (Hastelloy C 276), UNS 8020 (Alloy 20 / 20 CB 3)
Metline Industries is one of the prominent supplier, manufacturer and exporter of hex coupling nut in India. Our manufacturing process for hex coupling nut includes an adequate heat treatment and the examination of chemical and mechanical properties. These products are widely renowned across the domestic market as well as international sector for their longer life, corrosion resistance and dimensional accuracy. We supply the material to all big and small parties at any time they need. We have CNC machines as well as conventional lathe machines for machining and processing various types of hex coupling nut.
Production Supply & Manufacturing Range for Hex Coupling Nut
|Standard:||ASTM A563, ASTM A5944, ASTM A182, ASTM A194, ASTM A320 L7/L7A|
|Certificate:||EN 10204 3.1|
|Size||1/2″ to 36″|
|Surface Treatment:||Anti-Rust Oil, Painting ( Black, Yellow), Galvanizing, Power Coating|
|Testing Material :||Mechanical Testing Such as Tensile of Area, Hardness Test, Positive Material Identification – PMI Testing, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test|
|Package||Plywood Pallet, Wooden Pallet, Wooden Case etc.|
|Usage:||Used for the Construction, Shipbuilding, Refineries, Hydraulic & Pneumatic System, Furniture Industries, Pulp and Paper, Parmaceutical Processing etc.|
|Services||Flexible payment term|
|Best after sales service|
|Samples can be provided|
|Quick Just in Time Deliveries|
|Specification can be customized as per request|