Description
The Cross Recessed Flat Head Screw is a high-performance, precision-engineered Machine Screw designed for applications requiring a low-profile finish and exceptional reliability. Adhering to the Japanese Industrial Standard (JIS B 1111T), this fastener is characterized by its large, slightly domed head, which provides an increased bearing surface compared to standard screws.
Constructed from premium 316 stainless steel, these fasteners offer superior anti-corrosion properties, making them the preferred choice for the most demanding environments. The Cross Recessed Flat Head Screw is engineered for both strength and aesthetic appeal. Its unique large flat head design improves clamping force, making it ideal for securing thin materials in industrial, commercial, and marine sectors. With a standard cross recessed (Phillips) drive, these Machine Screws ensure easy installation with standard tools while preventing slippage during high-torque tightening.
Features & Benefits
- Premium 316 Stainless Steel: Exceptional resistance to rust, oxidation, and corrosion, ideal for marine and high-humidity environments.
- Large Flat Head Design: Offers a larger bearing surface area, which improves clamping force and reduces the risk of pull-through, ideal for securing thin materials.
- Standard Cross Recessed Drive: Features a standard cross groove, making it a standard part that is easy to lock and is less prone to slipping during installation.
- Deep & Uniform Thread: The precision-cut thread is deep, ensuring uniform force distribution for a secure and reliable mechanical connection.
Specification
|
Nominal diameter -d |
Pitch -p |
dk |
k |
Slot number |
||
|
max |
min |
max |
min |
|||
|
M2 |
0.4 |
4.5 |
4.1 |
1.3 |
1.1 |
1 |
|
M2.2 |
0.45 |
5 |
4.6 |
1.4 |
1.2 |
|
|
M2.5 |
0.45 |
5.7 |
5.3 |
1.6 |
1.4 |
|
|
M3 |
0.5 |
6.9 |
6.4 |
2.05 |
1.75 |
|
|
M3.5 |
0.6 |
8.1 |
7.6 |
2.35 |
2.05 |
2 |
|
M4 |
0.7 |
9.4 |
8.9 |
2.65 |
2.35 |
|
|
M4.5 |
0.75 |
10.6 |
10 |
2.95 |
2.65 |
|
|
M5 |
0.8 |
11.8 |
11.2 |
3.25 |
2.95 |
|
|
M6 |
1 |
14 |
13.3 |
3.9 |
3.5 |
3 |
|
M8 |
0.25 |
17.8 |
17 |
5 |
4.6 |
|
FAQ:
Q1: What is the difference between a standard flat head and a JIS B 1111T Large Flat Head?
A: The JIS B 1111T (often called a Truss head) has a significantly larger diameter and a thinner profile than a standard pan or round head. This allows for a greater bearing surface, which is essential for preventing damage to thin materials.
Q2: Do these screws require a countersunk hole?
A: No. Unlike countersunk head screws, the JIS B 1111T head is designed to sit on top of the material surface. Its low profile and slightly domed shape provide a clean look without the need for pre-drilling conical holes.
Q3: Can these fasteners be used in food processing equipment?
A: Yes. 316 stainless steel is a standard material for food and medical industries due to its high resistance to chemical cleaners and organic acids.
Q4: Why choose 316 stainless steel over 304?
A: 316 stainless steel offers superior corrosion resistance, particularly against chlorides and saltwater, making it ideal for marine and chemical environments.
Q5: Is this screw suitable for outdoor use?
A: Yes. Thanks to its 316 stainless steel construction, this cross recessed flat head screw performs exceptionally well in outdoor, humid, and corrosive conditions.
