Serrated Flange Bolts
Hex Flange Bolts with Serrated Bearing Surface
Serrated flange bolts are hex head fasteners with an integrated flange beneath the head and a serrated bearing surface on the underside of the flange. The wider bearing surface helps distribute clamping pressure, while the serrations increase surface engagement and can help resist rotation in suitable bolted joints.
Product Overview
Serrated flange bolts are hex head fasteners with an integrated flange beneath the head and a serrated bearing surface on the underside of the flange. The wider flange provides a larger bearing area, while the serrations increase surface engagement with the mating material and can help resist rotation in suitable bolted joints.
VALTOR supplies serrated flange bolts in stainless steel and carbon steel options for mechanical assemblies, equipment manufacturing and engineering applications. Common stainless steel materials include 304 and 316, with selected grades available according to stock and project requirements. Carbon steel versions can be supplied in commonly used strength classes for applications requiring higher mechanical performance.
Serrated flange bolts are commonly selected where installation efficiency, load distribution and improved joint stability are important. Customers can specify dimensions, thread configurations, material grades, surface finishes and packaging requirements, with customized production available for non-standard sizes and OEM projects. Inspection documentation and private-label packaging can be supplied for qualified projects.
Technical Specifications
Reference values for standard configurations; exact parameters depend on the requested specification.
Serrated Flange Design & Joint Stability
How the integrated flange and serrated bearing surface work together in bolted joints.
Surface Finishes
Stainless steel and carbon steel surface finishes available according to material grade and application requirements.
Available finishes depend on material grade and application requirements.
Serrated Flange Specifications & Customization
VALTOR supports customized serrated flange bolts for applications requiring specific dimensions, materials, thread configurations or packaging requirements.
Quality & Documentation
Inspection processes and documentation support customer verification and traceability.
Availability & Delivery
Indicative order parameters; actual values depend on project scope.
Packaging & Private Label
Standard and customized packaging options for B2B supply, with private-label service available.
Serrated flange bolts can be supplied in paper boxes, cartons and palletized shipments, with bulk packing, wooden cases and customized packaging available for qualified orders. Customer labels and private-label packaging can be produced after appropriate brand authorization.
Applications
Where serrated flange bolts are actually used — from automotive component assembly and machinery fastening to vibration-prone mechanical joints and OEM hardware projects.
Serrated flange bolts are commonly used in automotive and transportation assemblies where integrated load distribution and resistance to rotation are beneficial for compact mechanical connections.
The integrated flange and serrated underside make these bolts suitable for machinery frames, housings and mechanical assemblies where secure fastening and efficient installation are important.
Serrated flange bolts can be used in industrial equipment structures and fabricated components where a larger bearing surface and improved joint stability are required.
These bolts are suitable for selected fabricated steel and metal component connections where load distribution and secure bolted assembly are important.
The serrated bearing surface can help resist rotation in suitable joints exposed to vibration and repeated mechanical movement.
Frequently Asked Questions
What is the difference between a serrated flange bolt and a standard flange bolt?
A serrated flange bolt has serrations on the underside of the integrated flange, increasing surface engagement and potentially improving resistance to rotation compared with a plain flange design.
What is the purpose of the serrated flange under the bolt head?
The serrations increase contact with the mating surface, while the integrated flange provides a larger bearing area. The combination can help improve joint stability in suitable assemblies.
Can serrated flange bolts be supplied in stainless steel?
Yes. Common stainless steel options include 304 and 316, with selected grades available according to stock and project requirements.
Can serrated flange bolts be customized in size and thread configuration?
Yes. Customized dimensions, thread configurations, materials, finishes and packaging can be supplied according to project requirements.
Can samples be provided before bulk production?
Yes. Samples can be provided for customers to verify dimensions, material, flange geometry and assembly suitability before confirming bulk production.
Share your required dimensions, material, thread configuration or drawing with VALTOR for a customized quotation.