Knurled Head Thumb Screws
Standard: DIN 464
Thread Type: Coarse Thread
Commodity: Knurled Head Thumb Screws
Also Named: Round Head Thumb Screws
Material: Carbon Steel
Property Class: 5.8
Form: High
Diameter: M1, M1.2, M1.4, M1.6, M2, M2.5, M3, M4, M5, M6, M8, M10
Finish: Plain, Black Oxide, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
Head Type: Knurled Head
Drive Type: With Hand
MOQ: 1000kgs
Lead Time: 30 to 60 days
Product Introduction
AYA Fasteners (Hebei) Co., Ltd. is one of the most experienced manufacturers and suppliers of knurled head thumb screws in China. Please feel free to buy high quality knurled head thumb screws made in China here from our factory. For price consultation, contact us.

As a global supplier of customized fastening solutions, AYA's senvice process is also as close to customers as AYA's products. From describing needs to follow-up services, AYA will promptly and spare no effort to help customers solve any fastening problems that arise, to eliminate the concern of customers.
PRODUCT DESCRIPTION
Product Name | Knurled Head Thumb Screws |
Also Named | Round Head Thumb Screws |
Material | Carbon Steel |
Property Class | 5.8 |
Form | High |
Standard | DIN 464 |
Diameter | M1, M1.2, M1.4, M1.6, M2, M2.5, M3, M4, M5, M6, M8, M10 |
Finish | Plain, Black Oxide, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated |
Head Type | Knurled Head |
Drive Type | With Hand |
Thread Type | Coarse Thread |
DIMENSIONS TABLE

| Specifications | |||||||||||||
| d | M1 | M1.2 | M1.4 | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | |
| P | 0.25 | 0.25 | 0.3 | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | |
| b | max | 3.5 | 4 | 4.6 | 5.7 | 6.8 | 8.9 | 10 | 13.4 | 16.6 | 20 | 26.5 | 33 |
| min | 3 | 3.5 | 4 | 5 | 6 | 8 | 9 | 12 | 15 | 18 | 24 | 30 | |
| c | ① | ① | ① | ① | ① | 0.3 | 0.3 | 0.4 | 0.4 | 0.5 | 0.6 | 0.8 | |
| dk | Nominal Size | 5.5 | 6 | 7 | 7.5 | 9 | 11 | 12 | 16 | 20 | 24 | 30 | 36 |
| max | 5.74 | 6.24 | 7.29 | 7.79 | 9.29 | 11.35 | 12.35 | 16.35 | 20.42 | 24.42 | 30.42 | 36.5 | |
| min | 5.26 | 5.76 | 6.71 | 7.21 | 8.71 | 10.65 | 11.65 | 15.65 | 19.58 | 23.58 | 29.58 | 35.5 | |
| ds | max=nominal size | 2.8 | 3 | 3.5 | 3.8 | 4.5 | 5 | 6 | 8 | 10 | 12 | 16 | 20 |
| min | 2.55 | 2.75 | 3.2 | 3.5 | 4.2 | 4.7 | 5.7 | 7.64 | 9.64 | 11.57 | 15.57 | 19.48 | |
| h | Nominal Size | 3.5 | 4 | 4.7 | 5 | 5.3 | 6.5 | 7.5 | 9.5 | 11.5 | 15 | 18 | 23 |
| max | 3.74 | 4.24 | 4.94 | 5.24 | 5.54 | 6.79 | 7.79 | 9.79 | 11.85 | 15.35 | 18.35 | 23.42 | |
| min | 3.26 | 3.76 | 4.46 | 4.76 | 5.06 | 6.21 | 7.21 | 9.21 | 11.15 | 14.65 | 17.65 | 22.58 | |
| k | max=nominal size | 1.5 | 1.5 | 2 | 2 | 2 | 2.5 | 2.5 | 3.5 | 4 | 5 | 6 | 8 |
| min | 1.25 | 1.25 | 1.75 | 1.75 | 1.75 | 2.25 | 2.25 | 3.2 | 3.7 | 4.7 | 5.7 | 7.64 | |
| n | Nominal Size | 0.3 | 0.4 | 0.4 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.5 |
| min | 0.36 | 0.46 | 0.46 | 0.46 | 0.56 | 0.66 | 0.86 | 1.06 | 1.26 | 1.66 | 2.06 | 2.56 | |
| max | 0.5 | 0.6 | 0.6 | 0.6 | 0.7 | 0.8 | 1 | 1.2 | 1.51 | 1.91 | 2.31 | 2.81 | |
| r | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 1 | 1 | 2 | 2 | |
| t | min | 0.7 | 0.8 | 0.9 | 1 | 1.1 | 1.5 | 1.8 | 2.2 | 2.8 | 3.5 | 4.5 | 6 |
| max | 0.9 | 1 | 1.15 | 1.3 | 1.4 | 1.8 | 2.2 | 2.7 | 3.4 | 4.3 | 5.5 | 7 | |
| x | max | 0.6 | 0.6 | 0.75 | 0.9 | 1 | 1.1 | 1.25 | 1.75 | 2 | 2.5 | 3.2 | 3.8 |
| Knurl pitch | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.8 | |
| ① edges chamfered | |||||||||||||
PRODUCT DETAILS

PRODUCT ADVANTAGES

ADVANTAGES OF Knurled Head Thumb Screws
1. Knurled head screws with large, easy-to-grip heads improve ease of removal.
2. The knurled head thumb screws prevent possible over-tightening and stripping.
3. Round head thumb screws do not require any tools to operate the fastener, and can be achieved by hand.
4. The screws can be used where space is limited and tools cannot be used.
5. Knurled head thumb screws reduce the occurrence of broken or peeled fasteners that can occur when using the tool.
QUALITY INSPECTION

PACKAGING & CONTAINER LOADING

USAGE SCENARIOS

WHY CHOOSE AYA?
AYA provides exclusive services to 1000+ members from all over the world every year, with a unique chain service solution system, you only need to click the mouse to get exclusive fastening solution and enjoy door-to-door services.
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