316L Stainless steel double external thread connector

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316L Stainless steel double external thread connector

The 316L Stainless Steel Double External Thread Connector is a linear mechanical fitting used for rigid connections in piping systems. Its core feature is that both ends have external threads, and the middle typically has a hexagonal or circular force-bearing drive section. This product is designed to achieve a straight connection and tight seal between two pipe, valve, or equipment ports with internal threads. The threaded sections at both ends of the body are the core areas for achieving the connection function; the middle force-bearing section is designed with a standard hexagonal head structure, and its face width conforms to the standard wrench opening specification. This part not only applies torque during installation but also acts as a structural reinforcement, increasing the overall tensile strength of the connector; the transition shoulder connects the threaded section and the hexagonal head, and is designed with a relief groove or chamfer to eliminate stress concentration points.

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HEX NIPPLE

(METRIC)

  P MALE PT/NPT SIZE

CATALOG NUMBER

A

E MIN OPENING

F HEX FLAT

  1/8

HN-01

25.6 

4.8 

12 

  1/4

HN-02

36 

7.1 

14 

  3/8

HN-03

36.3 

9.6 

17 

  1/2

HN-04

46.7 

11.9 

22 

  3/4

HN-06

46.7 

15.7 

27 

  1"

HN-08

58.9 

21.5 

35 

About Us
Ningbo Keshengli Stainless Steel Valve Co., Ltd.
Ningbo Keshengli Stainless Steel Valve Co., Ltd.

Our company specializes in the manufacturing and sales of stainless steel pipe fittings and valves in national (GB), American (ANSI/ASME), and British (BS) standards. We are equipped with advanced CNC machining centers, material testing and heat treatment facilities, a skilled technical team, and a robust production workforce. With a sound quality management system and excellent after-sales service, we sincerely serve customers worldwide.

Our main products include: ferrule-type fittings, threaded fittings, instrument fittings, instrument needle valves, instrument ball valves, ferrule needle valves, ferrule ball valves, compact high-pressure instrument needle valves, compact high-pressure instrument ball valves, and high-pressure check valves. The primary material is SS316 stainless steel. These products are widely used in petrochemical, petroleum, electric power, pharmaceutical, food, papermaking, marine, and general machinery industries.

We strictly control product quality at every stage and are committed to delivering superior quality through advanced technology and professional management. Adhering to the business philosophy of "Quality First, Customer Supreme, Integrity Foremost," we strive to build the "NB-KSL" brand image, better serve our customers, and work together with you to create a prosperous future.

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