BUMAX 109 is a high-strength austenitic stainless steel fastener corresponding to property class A4-100. It delivers roughly the tensile strength of a high-grade steel bolt while retaining A4 stainless corrosion resistance, suiting demanding structural and mechanical joints in corrosive settings.
Selection depends on the size, thread, length, and the specific strength and corrosion requirements of the application.
Component Solutions Group stocks and sources BUMAX® 109 as part of a managed C-parts program for OEMs, with certification and consolidated supply. Explore BUMAX fasteners or request a quote.
Engineering support for material and finish selection
Global sourcing for lead time and cost optimization
Supply continuity and program support
Consolidate standard and custom parts through one partner
BUMAX® 109 is your first choice for better corrosion resistance and strength in demanding applications.