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  • The Straight Wire

Case Study: Threaded Studs & Nuts Used For Texas Oil Fields

Updated: Nov 23, 2022

Request samples by air freight, authentic testing certificate can be provided


Nota Bene:

The length of the studs must be from end to end. Not first thread to first thread.

Products must be compliant with standards set out in American Petroleum Institute Guidelines as in grade 1, 2, 3

API monogram might be needed based on customer requirement. Fees applies for certificate.

certificate of authority to use the offical API monogram - API Spec 20E


1.1.3 API Specification 20E – 1.3
This standard establishes requirements for three bolting specification levels (BSL). These three BSL designations define different levels of technical, quality and qualification requirements, BSL-1, BSL-2, and BSL-3. The BSLs are numbered in increasing levels of severity in order to reflect increasing technical, quality and qualification criteria.

HS CODE & Taxes: 7318. 15 Threaded articles: (con.) Other screws and bolts, whether or not with their nuts or washers.


Popular Items available for immediate delivery:

1-3/8” x 7-1/4” tap end with 1 nut

1-1/2” x 8-3/8” Tap end with 1 nut

1-1/8” x 5-3/4” tap end with 1 nut

1-7/8” x 14-1/2” stud with 2 nuts

1-3/4” x 15-3/8” stud with 2 nuts

1-1/2" x 11-3/4" with 2 nuts

1-1/2" x 13" with 2 nuts


For complete products range and other information

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