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Our M8-1.25 Silicon Bronze Fully Threaded Studs are high-performance fastening solutions meticulously engineered for heavy-duty machinery applications in challenging environments.
| 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 |
The Phosphor Bronze Hex Head Bolt Fastener delivers exceptional performance in precision engineering applications requiring both mechanical robustness and electrical functionality. Made from ASTM C51000 phosphor bronze (Cu-Sn-P alloy) through controlled casting and cold working, this bolt combines high tensile strength with excellent spring properties—making it uniquely suited for connections where repeated thermal cycling or mechanical stress would compromise standard fasteners .
Parameter | Value |
Material | ASTM C51000 Phosphor Bronze (Cu 94.8%, Sn 5%, P 0.2% for improved machinability) |
Size Range | M6 - M20 (metric coarse threads with pitch 1.0mm to 2.5mm) |
Head Style | Hexagonal (1.5x diameter width across flats for standard wrench compatibility) |
Tensile Strength | 550 - 650 MPa (minimum ultimate tensile strength) |
Hardness | HV160 - 200 (Vickers hardness tested under 100g load) |
Thread Type | Metric (6g tolerance for precision mating) |
Surface Finish | Polished (Ra ≤ 0.8μm) or natural (oxidation-resistant patina) |
• Hex head design allows high torque application (up to 200 Nm for M20 size) with standard wrenches, ensuring secure installation
• Excellent electrical conductivity (18% IACS) enables reliable current transmission in electromechanical connections, reducing contact resistance
• Superior fatigue resistance validated through 10^6+ cycles at 30% of tensile strength, critical for dynamic applications like automotive sensors
• Corrosion resistance in humid and mild chemical environments, with natural patina formation that inhibits further oxidation
• Dimensional stability across extreme temperature fluctuations (-40°C to 120°C), maintaining tight fits in precision assemblies
Perfect for electrical control panels in manufacturing facilities, automotive engine sensors, marine navigation electronics, and industrial robotics systems. Essential for relay connections, terminal block mountings, and precision gear assemblies where both mechanical strength and electrical conductivity are required to ensure operational reliability .
Q: How does this compare to brass bolts?
A: Offers 40% higher fatigue strength and 25% better spring retention than standard C36000 brass bolts under cyclic loading.
Q: Is this material RoHS compliant?
A: Yes, fully compliant with RoHS 2011/65/EU and REACH Regulation (EC) 1907/2006 for electronic and automotive applications.
Q: Available with different thread lengths?
A: Yes, both fully threaded (for through-hole applications) and partially threaded (for blind hole installations) variants are available, with thread lengths customizable to 0.5mm increments.
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 |
The Phosphor Bronze Hex Head Bolt Fastener delivers exceptional performance in precision engineering applications requiring both mechanical robustness and electrical functionality. Made from ASTM C51000 phosphor bronze (Cu-Sn-P alloy) through controlled casting and cold working, this bolt combines high tensile strength with excellent spring properties—making it uniquely suited for connections where repeated thermal cycling or mechanical stress would compromise standard fasteners .
Parameter | Value |
Material | ASTM C51000 Phosphor Bronze (Cu 94.8%, Sn 5%, P 0.2% for improved machinability) |
Size Range | M6 - M20 (metric coarse threads with pitch 1.0mm to 2.5mm) |
Head Style | Hexagonal (1.5x diameter width across flats for standard wrench compatibility) |
Tensile Strength | 550 - 650 MPa (minimum ultimate tensile strength) |
Hardness | HV160 - 200 (Vickers hardness tested under 100g load) |
Thread Type | Metric (6g tolerance for precision mating) |
Surface Finish | Polished (Ra ≤ 0.8μm) or natural (oxidation-resistant patina) |
• Hex head design allows high torque application (up to 200 Nm for M20 size) with standard wrenches, ensuring secure installation
• Excellent electrical conductivity (18% IACS) enables reliable current transmission in electromechanical connections, reducing contact resistance
• Superior fatigue resistance validated through 10^6+ cycles at 30% of tensile strength, critical for dynamic applications like automotive sensors
• Corrosion resistance in humid and mild chemical environments, with natural patina formation that inhibits further oxidation
• Dimensional stability across extreme temperature fluctuations (-40°C to 120°C), maintaining tight fits in precision assemblies
Perfect for electrical control panels in manufacturing facilities, automotive engine sensors, marine navigation electronics, and industrial robotics systems. Essential for relay connections, terminal block mountings, and precision gear assemblies where both mechanical strength and electrical conductivity are required to ensure operational reliability .
Q: How does this compare to brass bolts?
A: Offers 40% higher fatigue strength and 25% better spring retention than standard C36000 brass bolts under cyclic loading.
Q: Is this material RoHS compliant?
A: Yes, fully compliant with RoHS 2011/65/EU and REACH Regulation (EC) 1907/2006 for electronic and automotive applications.
Q: Available with different thread lengths?
A: Yes, both fully threaded (for through-hole applications) and partially threaded (for blind hole installations) variants are available, with thread lengths customizable to 0.5mm increments.
