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All Products of HJ-GK

We Offer

Special note

Nut Marking.

Body roll Marking.

Heat Number for traceability.

Superior quality back ferrule from special heat treatment.

Made in KOREA.

NPT (National pipe Thread)

Thread angle 60 Degree.

Tapered angle 1-47'.

Manufactured by the standard of ANSI B2. 1.

Taperad Thread

Thread angle 55 Degree.

Tapered angle 1-47'.

Equivalent to the standard of DIN2999 BS21 (BSPT) and JIS B0203 (PT).

Parallel Thread

Thread angle 55 Degree.

Equivalent to the standard of BS 2779 (BSPP), JIS B0202 (PF).

Use a gasket or O-Ring to seal.

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