Internal Hex Bolts
We take an M10×1.5 at grade 12.9 as an example. The recommended torque is 60-70 N·m. The break torque is ≥110 N·m. The size range is M3 to M16. Carbon steel grades cover 8.8, 10.9, and 12.9. Grade
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Stripper Bolt
We take a φ10 h7 size as an example. The actual diameter is 10.000 to 9.985 mm. When it fits with a linear bearing or bushing, the gap is very even. Tolerance is h6 or h7 level. That is ±0.005 mm to
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Torch Slot Self-tapping Screws
We take an M5×20 trilobular screw into 2 mm thick SPCC steel as an example. The pre-drilled hole is φ4.5 mm. The driving torque is only 1.5-2.5 N·m. This is 20-30% lower than a regular trilobular
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New Phillips Head Hex Bolt Combination Screws
At our Waigang Town factory in Jiading District, Shanghai, we have spent the last two decades perfecting the design and manufacturing of high-reliability fasteners. Our Phillips head hex bolt
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External Hex Head Bolts
When it comes to heavy-duty structural fastening, industrial machinery, and robust outdoor installations, our External hex head bolts deliver unmatched clamping force and reliable shear resistance.
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Torx Slot Assembly Screws
In modern assembly environments, cam-out and tool slippage represent major bottlenecks that compromise productivity and damage premium finished surfaces. Our Torx slot assembly screws are engineered
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Square Washer Combination Fasteners
Designed specifically for high-stress electrical terminals, heavy machinery, and structural sheet metal, our Square washer combination fasteners provide a secure, non-slip joint that distributes
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Phillips Head Hex Bolt Combination Screws
The washer has a anti-fall design. The axial pull-out force is ≥50 N. The parts will not separate during shipping or vibration. We take an M8×1.25 size at grade 8.8 as an example. The recommended
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Square Washer Combination Screws
We take an M3×6 size as an example. The square washer has a side length of 6.5 mm. It fits a square hole on a switch or terminal block. The washer will not rotate. This avoids scratching the wire or
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External Hex Bolts
We take an M10×1.5 at grade 8.8 as an example. The recommended torque is 40-50 N·m. It creates about 15-18 kN of preload force. This is enough to lock most mechanical structures. The size range is M4
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Expansion Bolts
We take an M10×100 mm expansion bolt in C30 concrete as an example. The embedment depth is 50 mm. The ultimate pull-out force is at least 8 kN. This follows ASTM E488. The ultimate shear force is at
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Set Screws
We take an M8×1.25 cup point set screw as an example. You tighten it to the recommended torque of 15 N·m on a shaft. It makes at least 500 N of axial clamping force. This is enough to hold a gear
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China sheet metal screws Manufacturers Factory Suppliers
We will adhere to the business philosophy that everything is customer-oriented and dedicate our quality Expansion Bolts, nuts bolts and washers, bolts nuts screws, experience and technology to every customer. The sheet metal screws is an environmentally friendly product produced by our company with the most advanced technology and fully automatic production line. The vigorous development of our company has attracted more and more ambitious and capable talents in management, technology and marketing to join us. We further improve our management and operation capabilities to bring more products with high market capacity, high technology content and high added value to the international market. Our company takes the high technology as the starting point, increases the market share from time to time. In order to further meet market demand, our company will continue to uphold the concept of stable operation and innovation to win. Our company has established a reputation as a leader in innovation and product development.
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The Non standard Gaskets, screw to bolt we offer in stock is just some of our outstanding products, and we can also produce it according to your specifications. As one of the most experienced sheet metal screws manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please rest assured to wholesale bulk sheet metal screws made in China here and get quotation from our factory. Customized orders are welcome.
