Knurling Thumb Screw, Customized Special Fastener, Carbon Steel with Nickel-Plated Screws

Product Description

Product Name: Knurled Thumb Screw

-Head Type: Round and knurled
-Thread Size: M4 - M12 or as requested
-Materials: Carbon steel
-Surface Finish: Nickel-plated
 

Thumb screws are multipurpose fasteners designed to be tightened and loosened by hand, rather than needing tools like screwdrivers or wrenches for installation. They have a wide range of useful applications, especially in parts, materials and builds that do not easily support the use of manual or power tools. Most thumb screws are usually made from steel, brass, plastic, resin, or some combination of these materials.

Small thumb screws can be as short as 4mm or less from the shoulder to the end of the threading, while long thumb screws commonly extend to around 25-30mm (1 inch) and beyond.

We offer a wide range of both standard and custom fasteners to meet your specific design requirements. For non-standard applications, we specialize in manufacturing custom fasteners based on your provided drawings or unique specifications. Here are some of our products which you may be interested.
 

 

Thanks for your attention to our products, we (Shanghai Jiangyi Precision Parts Co., Ltd) CAN supply standard fasteners, and special fasteners including non-standard lengths and diameters according to your drawings and specifications - usually with relatively short lead times and favorable prices available. 

To provide you with an accurate quotation, we require the following detailed information. Please complete and submit the form below before requesting a quote:

• Product: _________________
• Material: _________________
• Dimensions: _______ (Diameter) × _______ (Length)
• Dimension precision: _________________
• Order Quantity: _______________ pcs
• Surface Treatment: _________________
• Application place: _________________
• Required Delivery Date: __________________
• Shipping Destination: _______________ (Country, including postal code)
• Email your technical drawing in JPEG, PNG, PDF, or Word format, with a minimum resolution of 300 dpi for clear visibility.

More information please see our "Company Profile" and "Custom-Made Service" and send an inquiry to us, we will do our best to support you.

Hot Products Show

Turnery:

Cold Heading:

Casting:

Stamping:

Injection Molding:

 
 

Company Profile

Shanghai Jiangyi Precision Parts Co., Ltd has been established since June 2015. With a professional background and more than 15 years of the average working year, we are a group of young people committed to promoting the development of precision manufacturing in China.

Currently, our business scope covers turning(automatic lathe and CNC lathe), cold heading, injection molding, stamping, and casting. Of course, turning processing is the most of our core part of the business. We are concentrating on non-standard and customized precision machining products and parts.

For the early stage of product design, we are able to provide process analysis and technical support. When the project is launched, we can supply the samples. Full professional service and support are guaranteed until mass production.

Our core values: Professional, Reliable, Cost-efficient, and Sustainable.

Factory Images

Testing Equipment

Packaging Specification:
1. We have several sizes of packing dimensions, can be 10kg or 15kg per carton;
2. Normal packing:1000pcs/500pcs/250pcs per polybag, then polybags into cartons;
3. For large orders, we can provide special sizes of cartons and delivery goods on pallets or in plywood cases;
4. For customized specifications, we can provide special packing material according to your request.

 

Custom-Made Service

 

Shanghai Jiangyi Precision Parts Co., Ltd is committed to finding, manufacturing, or customizing the products you need. We serve a wide array of industries from OEM and ODM to machinery field, aircraft accessories, household appliance industry, construction and electronics. Jiangyi's in-house manufacturing and plating facilities gives us the ability to work with numerous types of materials including steel, stainless steel, brass, nylon, plastics and more. We can custom different types and sizes (including metric and inch), and coat anything from small fasteners to large parts. Decades of experience and fast turn-around time is why many large corporations have chosen JIANGYI as their custom fastener manufacturer.

If you require non-standard, modified or custom parts, simply upload a drawing, email, or send your requirments to us today, and let our team of experts help get you started on manufacturing the custom parts you need for your application.

Available Material	1. Stainless Steel: AISI303, AISI304, AISI316, AISI416, AISI420,etc.
	2. Free Cutting Steel:12L14,1215,etc.
	3. Brass:C37700 ( HPb59), C38500( HPb58),C27200(CuZn37), C28000(CuZn40/H62),C3604,etc.
	4. Bronze: C51000, C52100, C54400,CuSn8,etc.
	5. Steel:C45(K1045), C20,etc
	6. Aluminum: Al6061, Al6063, etc.
	7. Carbon Steel:AISI1006,AISI1010,AISI1022,etc.
	8. Alloy Steel: SCM435,10B21,etc.
	9. PA6,PA66,PP,PC,POM,PEEK(FOR Injection)
	10. According to customer's requirement
Finish	Electroplating: Zinc Plating, Ni Plating, Electroless Nickel Plating, Zn-Ni Alloy Plating, Tin Plating, Copper-plating, Hot-dip Galvanizing, Black Oxide Coating, Black Anodizing, etc
	Powdering, Rust Preventive Oil, Silver plating, etc
Testing Equipment	CMM, Projector, Pull Tester, Automatic Optic Inspector, Projecting Apparatus
	Salt Spray Test, Durometer, Coating Analyzer, Tensile Machine
Management System	ISO9001/SGS/Rohs/IATF16949
Certification	SGS,RoHS,Material Certification,PPAP
Production Capability	Auto Lathe Turning: ODΦ1.0-20mm, Tolerance.±0.01mm
	CNC Lathe Turning:ODΦ1.0-460mm,Tolerance.±0.005mm
	CNC Milling:800x600mm(LxW),Tolerance.±0.05mm
	Grinding: Tolerance.±0.002mm
	Screw Cold Heading and Rolling: Metric 0.8-M16
	Injection:300T Max
	Stamping:250T Max

 

FAQ

1. When can I get my quotation?
    We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.

2. How can I get a sample to check your quality?
    After price confirmation, you can require samples to check our quality. If you need the samples, we will charge for the sample cost. But the sample cost can be refundable after order confirmation when your quantity of the order up to a certain amount.

3. Can I order a small quantity?
    Of course, you can.

4. Do you provide ODM/OEM service?
    OEM / ODM is welcome, We got a professional and creative R&D team. From the concept to finished goods, we do all ( design, prototype reviewing, tooling and production ) in the factory.

5. How about the after-service of your product?
    We usually feedback within 24 hours after we get your complaint. And we can guarantee a satisfied solution to every customer.