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Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Third Edition
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STANDARD published on 1.3.2024
Designation standards: API SPEC 20E
Publication date standards: 1.3.2024
SKU: NS-1250663
The number of pages: 41
Approximate weight : 123 g (0.27 lbs)
Country: American technical standard
Category: Technical standards API
This standard specifies requirements for the qualification, production, and documentation of alloy and carbon steel bolting used in the petroleum and natural gas industries.This standard applies when required by an applicable API equipment standard or otherwise specified as a requirement for conformance. It establishes requirements for three bolting specification levels (BSLs). 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 requirements to reflect increasing technical, quality, and qualification criteria. See more
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Latest update: 2026-07-16 (Number of items: 2 287 999)
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