Knurled Thumb Screw, M3X12mm Flat Brass Bolt Handle Knob Fastener
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| Customization: | Available |
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| Material: | Brass |
| Type: | T Head |
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Basic Info.
- Model NO.
- M3x12mm knurled thumb screw
- Connection
- Common Bolt
- Head Style
- Knurled Thumb Screw
- Standard
- DIN, ANSI, GB, JIS, BSW, GOST
- Grade
- 10.9
- Application
- Machinery
- Finish
- Gold
- Hardness
- 8.8/10.9/12.9
- Titanium Alloy
- Q235/35K
- Stainless Steel
- A2(304),DIN 912
- Head Style.
- Inner Hexagon/Cylindrical Head
- Item Length
- 10/15/20/25/30/35/40/50/60/70mm
- Fastener Size
- M3
- Certification
- as, an
- Thread Coverage
- Fully Threaded
- Transport Package
- Carton Box
- Specification
- M4x20mm
- Trademark
- hongniu
- Origin
- Yangzhou, China
- Production Capacity
- 5000000pieces/Year
Packaging & Delivery
- Package Size
- 10.00cm * 5.00cm * 5.00cm
- Package Gross Weight
- 0.500kg
Product Description
Any product of the company can be customized. If you have any needs, please feel free to contact us
Made of brass, this thumb screw Knob is good for needs requiring high appearance, has corrosion resistance, rust resistance, good wear resistance, high hardness, well-fastening function, and long-lasting service than other materials.
Applied in home appliances, communications industry, automotive industry, etc. Widely used in the installation, maintenance, and fixing of various daily needs: such as light covers, musical instruments, mechanical assemblies, electronic equipment, communication equipment, ornamental products, and so on.
No tools are required. Knurled head thumb screws provide a solid grip and smooth surface, making it easier to tighten or loosen the fastener by hand. The larger the diameter of the thumb portion, the greater the clamping force that can be applied.
| Item | Details |
|---|---|
| Thread Size | Thread Diameter: M3; Thread Pitch: 0.5mm/0.02"; Rod Length: 12mm/0.47"; Thread Style: Fully Thread |
| Screw Head | Head Style: Flat Straight Line Knurled Head; Head Diameter: 9mm/0.35"; Head Thickness: 3mm/0.12"; Larger thumb diameter delivers greater clamping force |
| Material | Brass; high appearance finish, corrosion-resistant, rust-resistant, good wear resistance, excellent fastening performance, longer service life than other materials |
| Applications | Home appliances, communications industry, automotive industry; widely used for installation, maintenance & fixing of light covers, musical instruments, mechanical assemblies, electronic/communication equipment, ornamental products |
| Usability & Note | Tool-free operation; knurled head for solid grip and smooth surface, easy to tighten/loosen by hand; Note: Product in pictures may appear larger, confirm size before ordering to avoid mismatch |


[Thread Size] - Thread Diameter: M3"; Thread Pitch: 0.5mm/ 0.02"; Rod Length: 12mm/ 0.47"; Thread Style: Fully Thread
[Screw Head] - Head Style: Flat Straight Line Knurled Head; Head Diameter: 9mm/ 0.35; Head Thickness: 3mm/ 0.12". The larger the diameter of the thumb portion, the greater the clamping force that can be applied
[Material] - Made of brass, this thumb screw Knob is good for needs requiring high appearance, has corrosion resistance, rust resistance, good wear resistance, well fastening function and long-lasting service than other material
[Applications] - Applied in home appliances, communications industry, automotive industry, etc. Widely used in the installation, maintenance, and fixing of various daily needs: such as light covers, musical instruments, mechanical assemblies, electronic equipment, communication equipment, ornamental products, and so on
[Easy to Use] - No tools are required. Knurled head thumb screws provide a solid grip and smooth surface, making it easier to tighten or loosen the fastener by hand. The screws shown in the picture may be larger, please confirm the size before placing an order to avoid buying the wrong one.

Main products
About us
yangzhou Hongniu Automotive Parts Co., Ltd. was founded in June 2000. Located in Tangzhuang Town, the eastern suburbs of the historic and cultural city of Gaoyou, with convenient transportation. The company covers an area of 35000 square meters and currently has over 300 employees, including 70 high-level and intermediate professional and technical personnel. Registered capital of 20 million yuan, total assets of 78 million yuan, and fixed assets of 56 million yuan. Main products: Series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc. Widely used in industries such as aerospace, machinery, wind power, textiles, automotive manufacturing, petroleum, forging, etc. We have maintained good cooperative relationships with dozens of large and medium-sized enterprises in China, and are highly favored by our customers with our good reputation and excellent quality.
Q1: What is your main products?
A1: Our main sale products: series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc.
Q2: How long is your delivery time?
A2: Generally it is 10-15 days if the goods are in stock. or it is over 30 days if the goods are not in stock, it is according to quantity.
Q3: What is your payment method?
A3: 30% value of T/T in advance and other 70% balance on B/L copy. For small order less than 5000USD, would suggest you pay 100% inadvance to reduce the bank charges.
Q4: Can you provide a sample?
A4: Sure, Our sample is provided free of charge, but not including courier fees.
Q5: Can you customize the product according to the requirements of drawing sheets and so on?
A5: Sure, we can customize the products according to your requirements of drawing sheets, samples and so on. Product information include: material, surface treatment, specification and amount.
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