Product Specifications
| Model / Specification | M1.6 - M10 |
| Material | Carbon Steel |
| Thd. size d |
M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | M8 | M10 | ||
| P | Pitch | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | |
| a | Max. | 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.4 | 1.6 | 2 | 2.5 | 3 | |
| da | 2 | 2.6 | 3.1 | 3.6 | 4.1 | 4.7 | 5.7 | 6.8 | 9.2 | 11.2 | ||
| dk | Max. = Nom. | 3.2 | 4.0 | 5.0 | 5.6 | 7.00 | 8.00 | 9.50 | 12.00 | 16.00 | 20.00 | |
| Min. | 2.9 | 3.7 | 4.7 | 5.3 | 6.64 | 7.64 | 9.14 | 11.57 | 15.57 | 19.48 | ||
| k | Max. = Nom. | 1.30 | 1.60 | 2.10 | 2.40 | 2.60 | 3.10 | 3.70 | 4.6 | 6.0 | 7.50 | |
| Min. | 1.16 | 1.46 | 1.96 | 5.56 | 2.46 | 2.92 | 3.52 | 4.3 | 5.7 | 7.14 | ||
| r | Min. | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 | |
| R | ≈ | 2.5 | 3.2 | 4 | 5 | 6 | 6.5 | 8 | 10 | 13 | 16 | |
| x | Max. | 0.9 | 1 | 1.1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3.2 | 3.8 | |
| Recess No. | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 3 | 4 | 4 | ||
| M1 | Type H | Ref. | 1.7 | 1.9 | 2.7 | 3 | 3.9 | 4.4 | 4.9 | 6.9 | 9 | 10.1 |
| Depth | Type H | Max. | 0.95 | 1.2 | 1.55 | 1.8 | 1.9 | 2.4 | 2.9 | 3.6 | 4.6 | 5.8 |
| Depth | Min. | 0.7 | 0.9 | 1.15 | 1.4 | 1.4 | 1.9 | 2.4 | 3.1 | 4 | 5.2 | |
| M2 | Type Z | Ref. | 1.6 | 2.1 | 2.6 | 2.8 | 3.9 | 4.3 | 4.7 | 6.7 | 8.8 | 9.9 |
| Depth | Type Z | Max. | 0.9 | 1.42 | 1.5 | 1.75 | 1.93 | 2.34 | 2.74 | 3.46 | 4.5 | 5.69 |
| Depth | Min. | 0.65 | 1.17 | 1.25 | 1.5 | 1.48 | 1.89 | 2.29 | 3.03 | 4.05 | 5.24 | |
| Wt./1000 | - | - | - | - | - | - | - | - | - | - | ||
| Thread Length b | Min. | - | - | - | - | - | - | - | - | - | - | |
Cross Slotted Pan Head Screw — Product Introduction
The cross slotted pan head screw is a machine screw with a pan head (truncated cone shape) and a standard cross recess on top. It is driven into pre-tapped holes or used with nuts via a cross screwdriver or electric driver bit, primarily serving for fastening connections of metal, plastic, and electronic components. The common standard is GB/T 818, with thread sizes ranging from M1.6 to M10, and performance classes including 4.8, 8.8, as well as stainless steel grades A2-70 and A4-70.
I. Product Features
- Pan head structure: The head has a truncated cone shape with a flat top and smooth edges, providing a large bearing area.
- Cross recess drive: Equipped with a standard cross recess (Type H or Type Z), compatible with common cross screwdrivers and power tools, offering stable torque transmission.
- Complete thread size range: Nominal diameters from M1.6 to M10 with a wide range of nominal lengths, meeting diverse assembly requirements.
- Various materials and grades: Available in carbon steel, stainless steel, brass, and more. Carbon steel parts can be zinc-plated, blackened, or nickel-plated. Stainless steel parts are typically supplied in natural finish or passivated.
- Full thread or partial thread: Full-thread or semi-thread configurations are available based on service requirements.
II. Product Advantages
- Easy installation: The cross recess allows easy alignment and is resistant to cam-out, suitable for both manual and automated assembly.
- Excellent head bearing performance: The larger pan head diameter disperses clamping pressure during tightening, reducing damage to soft materials or thin panels.
- Strong versatility: As a standard fastener, dimensions are uniform and interchangeable, facilitating procurement, maintenance, and part replacement.
- Repeated assembly and disassembly: Complete threads allow repeated driving in and out without damaging the thread, convenient for maintenance.
- Low cost: Simple structure with mature manufacturing processes, suitable for high-volume applications.
III. Scope of Application
- Electronics and home appliances: Fastening of chassis, cabinets, small appliances, instrument enclosures, and internal component assemblies.
- Mechanical equipment: Fastening of machine tools, pumps, valves, automation equipment, reducers, and other components.
- Automobiles and motorcycles: Connection of interior parts, brackets, lamps, body accessories, and more.
- Furniture and decoration: Metal furniture, office furniture, display shelves, and hardware installations.
- General assembly: Fastening scenarios for metal and plastic parts requiring nuts or pre-tapped holes.
