BUMAX Catalog

BUMAX Catalog & Datasheets

Download the full BUMAX documentation below. All files are in English (PDF).

BUMAX Grades Portfolio
Overview of the full range: 88, 109, Duplex, Super-Duplex, Ultra and Heat.
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BUMAX 88 / 109 Datasheet
Full mechanical, chemical and physical data for grades 88 and 109.
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BUMAX 88 Brochure
Premium A4/316L High Mo, equivalent to strength class 8.8.
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BUMAX 109 Brochure
The strongest A4/316L fastener, equivalent to strength class 10.9.
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BUMAX DX 129 Flyer
Duplex grade, class 12.9 strength — quick overview.
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BUMAX DX 129 Brochure
Duplex alternative to coated class 12.9 carbon — no hydrogen-embrittlement risk.
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BUMAX Duplex Grades
DX 129 & SDX 109 for marine, offshore and chemical environments.
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Overcoming Galling
How BUMAX prevents galling (cold welding) in stainless fasteners.
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BUMAX Lock
Self-locking fastener solution for vibration-prone joints.
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BUMAX Ultra 159
Class 15.9, up to Rm 1500 MPa — the strongest stainless fastener in the world.
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Standard Parts Catalogue (2024)
Full range of standard BUMAX parts, with images.
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