Products Description
A stud is a high-strength fastener with threads at both ends and a typically unthreaded shank in the middle. It is widely used in applications requiring simultaneous fastening or connection of two components from both sides, playing an irreplaceable role, particularly in mechanical assembly, structural engineering, power equipment, automotive manufacturing, and industrial equipment.
Manufacturing Process
Cold Forging: Utilizing a high-precision cold heading machine, this integrally forms the stud, ensuring a coaxiality of the shaft and threads ≤0.05mm, preventing uneven loading during assembly.
Thread Rolling Reinforcement: Threads are machined using a rolling process, inducing compressive stress on the thread surface of the double-ended carriage bolt, increasing fatigue strength by 30% compared to machined threads.
Surface Treatment: Offers various options, including electroplating, hot-dip galvanizing, Dacromet coating, and blackening to meet different corrosion resistance requirements, adapting to all applications of double-end fasteners.
Heat treatment and tempering: Double-Ended Screw products of grade 8.8 and above are quenched and tempered to ensure uniform internal structure of the material and avoid brittle fracture under high load.
Industry Application Cases
| Power Equipment | Double-Ended Threaded Studs can be used for conductive connections and structural fixing in circuit breakers, contactors, and relays. |
| Automotive Manufacturing | Double-Ended Threaded Bolts can be used for engine mounts, gearbox housings, and chassis structural connections. |
| Mechanical Equipment | Double-Ended Stud Bolts can be used for pump and valve connections, bearing fixing, mold assembly, and conveyor belt structures. |
| Construction Engineering | Double-Ended Threaded Rods can be used for steel structure connections, curtain wall supports, and embedded part systems. |
| Electronic Communication | Double-Ended Threaded Fasteners can be used for cabinet installation, radiator fixing, and shielding housing assembly. |
Frequently Asked Questions
What are the differences in applicable scenarios between double-ended studs and single-ended bolts?
Double-ended threaded studs are more suitable for scenarios requiring fastening from both sides or where space constraints prevent the use of single-ended bolts, such as internal equipment connections and blind hole assemblies; single-ended bolts are more suitable for ordinary connections where only one side can be operated.
How to choose the appropriate surface treatment?
Electroplating is suitable for dry indoor environments; hot-dip galvanizing is suitable for high-humidity outdoor environments; Dacromet or stainless steel is recommended for marine or chemical environments. Please refer to our corrosion protection solution selection table for details.
What is the minimum order quantity and delivery time?
MOQ is negotiable. Small batches of standard specifications are available. Delivery time is generally 10-15 days; expedited orders are supported.
Do you provide free samples?
Yes, we can provide free Equal Double Threaded Stud samples to qualified customers; only the express delivery cost needs to be covered.
Contact Us
Thank you for reading this Double-head Stud product detail. If you require further technical specification confirmation, drawing review, or sample requests, please feel free to contact us. Our engineering team will provide you with professional support.
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