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Headless screw rod, with the entire rod body machined with external threads from beginning to end, featuring no smooth sections. It is secured by nuts at both ends. Commonly known in the industry as a threaded rod, threaded stud, or headless screw.
Materials: Silicon bronze, phosphor bronze, aluminum bronze, copper, etc. are available.
Standards: ASME, DIN, GB, BS, etc. Custom sizes are available.
Basic Packaging: Plastic bag + neutral cardboard box (unmarked) + solid wooden pallet
| Quantity: | |
|---|---|
Fully Threaded Studs | |||
1/4-20 | 5/16-18 | 3/8-16 | 1/2-13 |
9/16-12 | 5/8-11 | 3/4-10 | M3-0.5 |
M4-0.7 | M5-0.8 | M6-1.0 | M8-1.25 |
M10-1.5 | M12-1.75 | M16-2.0 | M20-2.5 |
This headless headless bolt, made from high-quality C65100/C65500 silicon bronze alloy, is a fully customizable industrial precision fastener. Featuring a headless, fully threaded design, it eliminates the space-consuming head of traditional bolts, making it suitable for confined spaces, embedded locking, and precision mating applications. Manufactured using precision cold heading and CNC machining processes, the thread is clear, regular, full, and burr-free, with strictly controlled dimensional accuracy and tolerances conforming to industrial precision standards. Customization services are also available for non-standard sizes, special lengths, special precision, and surface finishes, perfectly meeting the diverse fastening needs of marine engineering, electrical equipment, precision machinery, and outdoor engineering. It is a high-end, corrosion-resistant, and highly conductive fastener that replaces ordinary carbon steel and stainless steel bolts.
Forged from high-quality silicon bronze alloy, these bolts offer superior overall performance compared to ordinary brass, carbon steel, and stainless steel bolts. They possess exceptional corrosion resistance, effectively resisting corrosive media such as seawater salt spray, acid and alkali water vapor, industrial waste gas, and sulfides. In salt spray environments, their service life exceeds that of ordinary fasteners by more than 30%, eliminating problems such as rust, oxidation, and loosening. Simultaneously, the material is heat-resistant, resistant to softening, and not easily brittle, maintaining stable performance under alternating high and low temperature conditions, making them suitable for complex and harsh industrial environments.
The fully threaded structure ensures effective locking throughout the entire process, with 100% thread utilization. Compared to semi-threaded bolts, it offers a longer locking stroke, a more secure fixation, and eliminates the risk of loosening or gaps. The headless, integrated structure eliminates protrusions and interference, resulting in a smooth and flush fit after installation without occupying extra space. It is perfectly suited for embedded installations, concealed fastening, and precision equipment assembly, solving the pain points of traditional bolts such as head interference, wear and tear, and irregular appearance.
Silicon bronze has excellent electrical and thermal conductivity and is non-magnetic. Unlike steel bolts, it will not cause magnetic interference to precision electronic instruments, low-voltage equipment, and sensors. It can ensure stable electrical connections and efficient heat dissipation, making it a high-quality fastener for electrical connections and precision electronic equipment assembly.
It supports full-dimensional non-standard customization, covering parameters such as bolt diameter, length, thread specifications, pitch, surface treatment, and precision grade. It can be tailored according to customer drawings, samples, and equipment operating conditions without secondary processing, greatly reducing customer assembly costs and time costs, and is suitable for various niche, special, and precision industrial assembly scenarios.
Adopting a precision cold heading process, the product has a uniform structure and high density, making it less prone to deformation and cracking. It has excellent tensile strength and shear resistance, good anti-vibration and anti-loosening effect after locking, and can maintain stable fastening performance under long-term high-frequency working conditions. It is wear-resistant and wear-resistant, and its service life is greatly extended.
1. Material Characteristics: High-purity silicon bronze alloy, uniform and dense texture, free of pores, sand holes, and cracks. It boasts strong material stability, corrosion resistance, high temperature resistance, aging resistance, non-magnetic properties, high electrical and thermal conductivity, and balanced comprehensive mechanical properties.
2. Threading Process: Precision thread rolling throughout the entire body, resulting in standard thread profiles, uniform texture, tight engagement, high thread precision, smooth meshing without slippage, stable locking accuracy, and minimal thread damage even after repeated disassembly and assembly.
3. Appearance Quality: Smooth surface free of burrs, scratches, and oxidation spots. Uniform overall color, strong metallic texture, combining practicality and aesthetics, suitable for high-end equipment and landscape engineering installations.
4. Structural Features: Headless integrated molding, compact structure, small size, concealed installation, high fit, no spatial interference, suitable for various confined, precision, and hidden assembly scenarios.
5. Adaptability: Shock-resistant and anti-loosening, uniform tightening force, not easily deformed under stress, resistant to high and low temperatures, acids and alkalis, and salt spray; wide range of working conditions adaptable; not prone to loosening or failure after long-term use.
6. Customization: Supports customization according to multiple standards such as national standards, American standards, and German standards; can process non-standard irregular sizes, special tooth pitches, and high-precision tolerance products to meet various personalized industrial needs.
Leveraging the unique properties of silicon bronze and its headless, fully threaded structure, this product is widely applicable to high-end precision assembly scenarios across multiple industries, specifically addressing fastening challenges under various demanding working conditions.
1. Marine Engineering: Suitable for fastening ship deck components, underwater equipment, marine electrical installations, and offshore platform parts. Resistant to seawater salt spray corrosion, it remains rust-free and functional even during long-term underwater operation.
2. Electrical Equipment: Used for assembling high and low voltage electrical components, conductive connection assemblies, precision instruments, sensing equipment, and low-voltage control systems. Its high conductivity and non-magnetic properties ensure stable equipment operation and eliminate magnetic field interference.
3. Precision Machinery Manufacturing: Suitable for embedded and concealed fastening of automated equipment, precision machine tools, instruments, and hydraulic/pneumatic components. Installation in confined spaces is interference-free, and high locking precision ensures equipment operational accuracy.
4. Outdoor Landscaping and Architectural Engineering: Used for fastening outdoor curtain walls, garden landscape facilities, retro building restoration, and outdoor steel structure components. Weather-resistant, oxidation-resistant, and anti-aging, it requires no frequent replacement or maintenance for year-round outdoor use.
5. Chemical and Environmental Protection Equipment: Suitable for assembling chemical pipelines, sewage treatment equipment, and corrosion-resistant equipment parts. It can withstand corrosive media such as acids, alkalis, and sulfides, and is suitable for harsh chemical working conditions.
6. Aerospace and New Energy: Applied to the assembly of lightweight aviation parts, new energy equipment, and heat exchange components, relying on its excellent thermal conductivity, high temperature resistance, and lightweight properties to meet the precision fastening requirements of high-end equipment.
Base Material: C65100/C65500 silicon bronze alloy (material grade can be customized)
Product Structure: Headless full-body thread
Thread Standard: GB (Chinese National Standard), UNC/UNF (American Standard), DIN (German Standard), ISO (International Standard) – customizable
Precision Grade: 6g/6H precision grade (higher precision grade can be upgraded upon request)
Surface Treatment: Original polishing, anti-oxidation treatment, natural rust prevention (special surface treatments can be customized)
Core Performance: Corrosion resistant, non-magnetic, high electrical and thermal conductivity, high temperature resistant, tensile strength, shock resistant, and anti-loosening
Customization Services: Customized size, specifications, processes, standard products, and batch non-standard processing
Professional Packaging Protection: Products are packaged with multiple layers of protection, including individual meticulous protection and bulk moisture-proof sealed packaging, combined with rigid cardboard boxes, foam cushioning, and shockproof stretch film. This effectively prevents damage from thread impacts, wear, deformation, oxidation, and moisture during transportation, ensuring that every product arrives intact. For large orders, reinforced cardboard boxes and pallets are used to prevent damage during transport.
Flexible Transportation Options: We support various transportation methods such as express delivery, logistics, and full truckload delivery. We ship nationwide from the nearest location, with standard specifications available for immediate shipment. Customized orders are tracked throughout the production process for efficient delivery. We can provide value-added services such as expedited delivery, designated delivery points, and logistics reconciliation according to customer needs, adapting to different requirements such as retail, bulk purchasing, and project procurement.
After-Sales Guarantee: Full logistics tracking. Free replacement, return, and exchange are available for any damage during transportation or product quality issues, comprehensively protecting the rights and interests of our customers.
A marine engineering procurement client: "We've been purchasing silicon bronze headless fully threaded bolts from this company, specifically for use on offshore platform equipment. After over a year in salt spray environments, there's been absolutely no rust or oxidation. They're much more durable than the stainless steel bolts we used before. The fully threaded locking is very secure, and the embedded installation fits perfectly without any head interference issues. Custom-made non-standard dimensions are also highly accurate, fully meeting equipment assembly standards. We have complete confidence in our long-term cooperation."
An electrical equipment manufacturer client: "These bolts are non-magnetic and have excellent conductivity, perfectly suited to the assembly needs of our precision electrical equipment. They don't interfere with instrument sensor signals, and their heat dissipation is excellent. The threads are finely crafted, with a tight, non-slip fit. Bulk purchases offer great value, and customized orders are delivered quickly with consistent quality." "This is a superior choice for securing electrical equipment."
An outdoor construction customer: "These fasteners are specifically designed for outdoor landscaping projects. They won't oxidize or fade even after years of exposure to wind and rain, offering excellent corrosion resistance. The headless design results in a smooth and aesthetically pleasing surface after installation, perfectly matching the needs of retro architecture and outdoor facilities. The craftsmanship is exquisite, with no burrs or flaws. After-sales service is prompt, and we've been very satisfied with our multiple purchases."
A precision machinery manufacturing customer: "This headless, fully threaded bolt is essential for assembling equipment in confined spaces. Its through-thread design maximizes thread utilization, provides uniform tightening force, and offers excellent shock resistance and anti-loosening properties, preventing loosening during equipment operation. The material is dense and resistant to deformation under stress. High-precision custom dimensions fully meet standards, effectively improving the assembly accuracy and stability of the equipment."
