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Round Flat Joint Sanitary Union Nut – ISO, CE Certified

Updated 2026-11-04 · Markdown version

Model no. Sanitary Union Nut

US$0.36 – 60.00 / piece

MOQ 500 pieces · Final price confirmed in your quote

Standard: GB3289.37,3298.38-82
Material: Stainless Steel
Standards: SMS, DIN, Ldf Rjt, Lso
Package Size: 10.00cm * 10.00cm * 10.00cm

Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
After-sales Service	1 Year
Warranty	1 Year
Model NO.	Sanitary Union Nut
Standard	GB3289.37,3298.38-82
Technique	Casting
Type	Threaded Union
Material	Stainless Steel
Connection	Female
Certificates	ISO, CE
Trademarke	Qm Stainless
Standards	SMS, DIN, Ldf Rjt, Lso
Connection Type	Weld, Clamp, Thread, Flange or Other!
Transport Package	Plastic Bag, Carton, Plywood Tray
Origin	Wenzhou
HS Code	760900000
Production Capacity	5000 Set / Week
Package Size	10.00cm * 10.00cm * 10.00cm
Package Gross Weight	1.000kg
Category	Hex & Other Standard Nuts

Technical parameters

Parameter	Specification
Product Name	Hygienic Sanitary Union Nut (Lock Nut for Sanitary Union Fitting)
Material Options	Stainless Steel 304, Stainless Steel 316L, EN 1.4301, EN 1.4404
Applicable Standards	DIN 11850, SMS, RJT, 3A, ISO 2852
Size Range	DN10 - DN150 (1/2" - 6")
Surface Finish	CNC Machined, Electropolished, Ra ≤ 0.8μm (Hygienic Grade)
Thread Type	Special Sanitary Round Thread (Non-Standard Pipe Thread, for Union Fitting)
Working Temperature	-20ºC ~ +120ºC
Application Scenario	Sanitary Valves, Food & Beverage Piping, Pharmaceutical Equipment, Dairy Processing Lines

Description

Round Flat Joint Sanitary Union Nut – ISO, CE Certified is part of our hex & other standard nuts range (Nuts).

Key details

Type: Threaded Union
Standard: GB3289.37,3298.38-82
Material: Stainless Steel
Connection: Female
Warranty: 1 Year
Technique: Casting
Certificates: ISO, CE
Trademarke: Qm Stainless

Available configurations include standard, material, standards and package size. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 500 pieces at US$0.36 – 60.00 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Round Flat Joint Sanitary Union Nut – ISO, CE Certified?

The listed minimum order is 500 pieces, at US$0.36 – 60.00 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

What are the main specifications of Round Flat Joint Sanitary Union Nut – ISO, CE Certified?

Type: Threaded Union; Standard: GB3289.37,3298.38-82; Material: Stainless Steel; Connection: Female; Warranty: 1 Year; Technique: Casting. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include standard, material, standards and package size. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other hex & other standard nuts are available?

The Hex & Other Standard Nuts category lists 8,354 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/nuts/hex-other-standard-nuts/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

Request a quote for this product

US$0.36 – 60.00MOQ 500 piecesGet a quote WA