Hexagon-Shaped Head Bolt With Flange
Products Description
The Hexagon-Shaped Head Bolt with Flange is a fastener that integrates a flange structure beneath the bolt head. This increases the load-bearing area, resulting in more uniform load distribution and faster assembly. It is primarily used in automotive manufacturing, construction, and machinery equipment. This design eliminates the need for additional gaskets required with traditional bolts. The flange size is typically 30%-50% larger than the bolt head width, ensuring optimized contact stress distribution and protecting the surfaces of the connected components from damage.
Product Advantages
Flange Function Integration Simplifies Assembly
The flange replaces the function of traditional flat washers or spring washers, reducing the number of parts and assembly steps. The flange and bolt head are integrally molded, eliminating the problems of gasket misalignment, omission, or loss during installation of Hex Head Screw with Washer Included.
Increased Bearing Area Reduces Surface Compressive Stress
The Hex Head Screw with Washer Combined significantly increases the contact area between the bolt head and the connected parts, distributing the axial force generated by the tightening torque over a larger area, effectively preventing surface indentation and deformation of softer materials (such as aluminum alloys, plastics, and thin plates).
Anti-slip Serration Provides Reliable Loosening Prevention
The radial serrations on the lower surface of the Hex Head Screw with Washer-Integrated Head engage with the surface of the connected parts during tightening, generating additional frictional resistance, effectively resisting bolt loosening under vibration or alternating load environments.
Design Advantages
Flange Diameter Optimization: Recommends the minimum Brass Hex Head Screws with Washers diameter based on the strength of the connected components (steel/aluminum/plastic) to prevent crushing.
Tooth Design Matching: Recommends tooth height and profile based on workpiece surface treatment (painting/electrophoresis/anodizing) to balance loosening prevention and surface damage by Hex Head Screw with Washer Included.
Strength Grade Selection: Recommends an appropriate strength grade based on the importance of the connection (safety component/non-safety component) and load type of Hex Head Screw with Washer Combined (static/dynamic/impact).
Tightening Process Recommendations: Provides recommended preload, tightening torque, and friction coefficient ranges to avoid over-tightening or under-tightening.
Production Process
Raw Material Inspection: Chemical composition analysis and mechanical property retesting are performed on incoming wire rods or bars to confirm that the material grade and original condition meet requirements.
Cold Heading: A multi-station cold heading machine is used for Hex Head Screw with Washer-Integrated Head to sequentially complete wire cutting, head pre-heading, flange forming, and shank stretching at room temperature. During cold heading, the metal flow lines are continuously distributed along the product shape, resulting in higher head strength than machined parts.
Thread Rolling: External threads are formed on the Brass Hex Head Screws with Washers shank using a thread rolling plate or thread rolling wheel. The rolling process causes work hardening on the thread surface, increasing fatigue strength by 20%-30% compared to machined threads.
Heat Treatment: Hex Head Screw with Washer-Integrated Head with strength grades of 8.8 and above undergo quenching and tempering (quenching + high-temperature tempering) to obtain the target mechanical properties.
Surface Treatment: Surface treatments for Hex Head Screw with Washer Included such as galvanizing, Dacromet coating, and phosphating are performed according to customer requirements, forming a protective layer after passivation.
Dimension and performance testing: Batch testing of key dimensions is carried out using an image measuring instrument, and mechanical properties such as hardness and tensile strength are verified for Hex Head Screw with Washer Combined.
contact us
If you are looking for a reliable Hexagon-Shaped Head Bolt with Flange solution for machinery, building structures, or automotive parts, our engineering team can provide customized bolt designs based on your load requirements, the materials being connected, and corrosion protection needs.
Hot Tags: hexagon-shaped head bolt with flange, China hexagon-shaped head bolt with flange manufacturers, suppliers, factory, Double Ended Threaded Bolt, Flat Head Electrical Screws, Self Cutting Metal Screws, Self Forming Screw, Slotted Cheese Head Screws, Steel Set Screw
You Might Also Like
Send Inquiry