Is the INTERLOCK Straight End GZ NPTF, Carbon Steel Connector compatible with 4SH, R13, and R15 high-pressure hoses?

Yes. The INTERLOCK Straight End GZ NPTF, Carbon Steel Connector is compatible with high-pressure hoses 4SH, R13, and R15. It is specifically designed for those hose types, featuring a 60° cone JIC seat, interlock construction for superior pull-out strength, and precise NPTF external threading. Manufactured from carbon steel with high-quality galvanization, it provides secure, leak-free connections and high corrosion resistance for demanding hydraulic applications.

How does the INTERLOCK Straight End GZ NPTF, Carbon Steel Connector’s 60° cone and interlock design improve leak resistance and pull-out strength in heavy-duty hydraulic systems?

The INTERLOCK Straight End GZ NPTF, Carbon Steel Connector’s 60° cone and interlock design improve leak resistance and pull-out strength by combining precise sealing geometry with a mechanical locking action. The 60° cone creates a uniform metal-to-metal contact area that concentrates sealing forces evenly around the mating surface, producing a tight, repeatable seal that resists extrusion and vibration-induced loosening—critical for high-pressure hoses like 4SH, R13 and R15. Meanwhile, the interlock construction physically locks the hose assembly to the fitting, distributing axial loads across a broader contact area and preventing the hose from slipping or separating under surge or continuous heavy loads. Made from carbon steel and galvanised for corrosion protection, the connector maintains dimensional stability and thread integrity over time, ensuring the cone and interlock features keep functioning reliably. Together, these elements deliver enhanced leak resistance, higher pull-out strength, easier assembly, and improved durability in demanding hydraulic environments.

INTERLOCK Straight End GZ NPTF, Carbon Steel Connector

All products, Fittings for high-pressure hoses/

Additional information

Material	CS – steel (cast iron)

The Straight JIC INTERLOCK fitting with external NPTF thread and a precise 60° cone is engineered to deliver maximum reliability in demanding hydraulic applications. Designed specifically for use with high-pressure hose types 4SH, R13, and R15, it ensures a secure and leak-free connection even under extreme working conditions. Manufactured from robust carbon steel and finished with a high-quality galvanization, the fitting offers outstanding resistance to corrosion, extending service life and reducing maintenance costs. Its interlock construction provides superior pull-out strength and durability, making it an excellent choice for heavy-duty industries such as construction, mining, and agriculture. With its precise threading and optimized geometry, the fitting guarantees easy assembly, consistent performance, and enhanced safety, helping to maintain uninterrupted operation of hydraulic systems. This combination of strength, reliability, and protection makes it a trusted solution for professionals who demand top performance from their equipment.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TI-ILNZ110-12-12	End. INTERLOCK GZ 3/4" NPTF, hose 3/4"	20	-	In stock	Enquiry
TI-ILNZ110-16-16	End. INTERLOCK GZ 1" NPTF, hose 1"	25	-	In stock	Enquiry
TI-ILNZ110-20-20	End. INTERLOCK GZ 1.1/4" NPTF, hose 1.1/4"	32	-	In stock	Enquiry
TI-ILNZ110-24-24	End. INTERLOCK GZ 1.1/2" NPTF, hose 1.1/2"	38	-	In stock	Enquiry
TI-ILNZ110-32-32	End. INTERLOCK GZ 2" NPTF, hose 2"	50	-	In stock	Enquiry

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The Straight JIC INTERLOCK fitting with external NPTF thread and a precise 60° cone is engineered to deliver maximum reliability in demanding hydraulic applications. Designed specifically for use with high-pressure hose types 4SH, R13, and R15, it ensures a secure and leak-free connection even under extreme working conditions. Manufactured from robust carbon steel and finished with a high-quality galvanization, the fitting offers outstanding resistance to corrosion, extending service life and reducing maintenance costs. Its interlock construction provides superior pull-out strength and durability, making it an excellent choice for heavy-duty industries such as construction, mining, and agriculture. With its precise threading and optimized geometry, the fitting guarantees easy assembly, consistent performance, and enhanced safety, helping to maintain uninterrupted operation of hydraulic systems. This combination of strength, reliability, and protection makes it a trusted solution for professionals who demand top performance from their equipment.