Description
The SS Pan Head Self Tapping Screw (JISB1122 Standard) is a high-performance fastening solution engineered for precision and durability. Crafted from premium 304 stainless steel, these screws are designed to displace material and form their own internal threads in pre-drilled or punched holes. This eliminates the need for separate tapping tools, streamlining the assembly of sheet metal, plastics, and wood.
The "Large Pan Head" configuration is a standout feature, providing an increased surface area that prevents pull-through and ensures a secure hold on thinner materials. Whether for industrial machinery, electronic enclosures, or outdoor fixtures, these stainless steel screws deliver exceptional resistance to oxidation and environmental wear.
Features & Benefits
- Large Pan Head Design: Offers a broad contact surface for better load distribution and secure fastening without damaging softer materials.
- Cross Groove Drive (Phillips Head): Ensures stable torque transfer, reduces driver slippage, and allows smooth, efficient installation.
- Self-Tapping Function: Designed to form its own threads into pre-drilled or punched holes, eliminating the need for tapping tools and simplifying the assembly process.
- Strong and Uniform Thread Design: Deep, precise threading provides firm grip strength, excellent vibration resistance, and uniform load distribution.
Specification
|
Specification |
Pitch -p |
Head diameter -dk |
Head thickness -k |
||
|
min |
max |
min |
max |
||
|
M2.9 |
1.1 |
6.5 |
6.7 |
2 |
2.2 |
|
M3.5 |
1.3 |
7.75 |
7.9 |
2.2 |
2.45 |
|
M3.9 |
0.8 |
9.05 |
9.2 |
2.5 |
2.65 |
|
M4.2 |
1.4 |
9.05 |
9.2 |
2.5 |
2.65 |
|
M4.8 |
1.6 |
11.3 |
11.4 |
3.1 |
3.25 |
|
M6.3 |
1.8 |
13.5 |
14 |
3.5 |
3.8 |
FAQ:
Q1: What is the difference between a standard pan head and this "Large Pan Head"?
A: The Large Pan Head (often associated with JIS standards) has a wider diameter than a standard DIN or ISO pan head. This provides more "clamping" force on the surface of the material, which is especially helpful when the hole is slightly oversized or the material is thin.
Q2: Do I need to drill a hole first?
A: Yes. Unlike "self-drilling" screws which have a drill-bit tip, these self-tapping screws require a pre-drilled or punched pilot hole. The screw will then tap its own threads as it is driven in.
Q3: Why use JISB1122 screws over standard wood screws?
A: JISB1122 screws are specifically designed for metal and plastic. The thread pitch is finer and the material is harder, allowing them to create a tighter, more secure thread in dense materials compared to the coarse threads of a traditional wood screw.
Q4: What materials can this screw be used with?
A: It is suitable for sheet metal, plastic, wood, and other thin materials commonly used in industrial and commercial assemblies.
Q5: Is this screw compatible with power tools?
A: Yes. The Phillips drive is compatible with standard power drivers and manual tools for efficient installation.
