
Flat Head Machine Screws
When your assembly requires a smooth, flush surface with zero bolt head protrusion, our high-precision Flat head machine screws offer the ideal fastening solution. Featuring a 90-degree countersunk
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Headless Grub Screws
Do you need to secure a gear or pulley to a shaft without a bulky screw head getting in the way? Our Headless Grub Screws are the perfect solution for flush-mount fastening. Designed to be screwed
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Concrete Sleeve Anchors
Securing heavy equipment to concrete or brick walls requires more than just a screw; it requires an anchor that grips from within. Our Concrete Sleeve Anchors solve the problem of pull-out in masonry.
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Hex Washer Head Phillips Sems Screws
hese are pre-assembled combinations where the washers are trapped on the screw body before thread rolling, meaning they will never fall off during transit or assembly.
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Welding Screw Studs
For a permanent, high-strength fastener connection on thin sheet metal panels without drilling holes or leaving unsightly protruding bolt heads, our high-precision Welding screw studs are the perfect
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Set Screw Fasteners
When locking pulleys, gears, collars, and shafts in place without a protruding bolt head, our high-precision Set screw fasteners are the optimal choice. Designed with an internal hex socket drive
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Expansion Anchor Bolts
For secure, heavy-duty load anchoring in concrete, solid brick, and masonry structures, our Expansion anchor bolts provide the ultimate pull-out strength and mechanical security. Designed with a
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Internal Hex Socket Bolts
For structural joints requiring high tensile strength, compact head clearance, and a clean, flush appearance, our Internal hex socket bolts are the industry-preferred choice. Featuring a deep,
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Torch Slot Combination Screws
We take an M6 Torx (T30) as an example. The maximum transfer torque is ≥25 N·m. This is much higher than a Phillips slot (PH3) at ≤12 N·m. We follow DIN 34800 for repeated tightening. After 100
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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 washer with bolt Manufacturers Factory Suppliers
Our company adheres to the development path of specialization and technology and continuously increases investment in scientific and technological innovation. In the new century, in the face of fierce market competition, we will focus on the future, based on innovation, and create a good brand with high-quality nuts and bolts with washers, screw self drilling, socket head flat screw to repay the support of the majority of users. Our company provides washer with bolt and related products to customers all over the country and even overseas. At the same time, our professional personnel training and after-sales service have also won a lot of praise. The advent of the information age has broadened the space for our exchanges and cooperation. I believe that our company will continue to follow the business philosophy of customer first and reputation first. We offer a wide range of household and personal care products. We have a team of experienced professionals to meet customer needs. We believe that our success is dependent on the success of our customers, and we work hard to ensure their satisfaction. We believe that talent cultivation mechanism is an important way to add value to human capital and constantly improve it. We have a excellent team supplying professional service, prompt reply, timely delivery, excellent quality and best price to our customers. In order to provide consumers with healthy, safe and comfortable products, our company has been working hard.The gifts are very advanced, the workmanship is fine, the quality is very good, and the price is appropriate. I am very satisfied with this gift.
The company's receptionist welcomed me very warmly and has been patiently answering all my doubts, truly felt at home.
You are a hundred-year enterprise, and you have your own principles in everything you do.
When communicating with the technical talents in their team, we found that they have a long-term vision and are very good at technology research to localized innovation.
I think you can choose this supplier without hesitation.
These products are very satisfactory, and the transportation speed is very fast.
We want to be a first-class enterprise in the special fasteners, Multi Grip Rivet Nut, set of bolts industry with satisfied customers, happy employees, a sense of social responsibility and sustainable operation. As one of the most experienced washer with bolt manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please rest assured to wholesale bulk washer with bolt made in China here and get quotation from our factory. Customized orders are welcome.
