Description
The SS Cross Drilling Screw is a high-efficiency self-drilling fastener engineered for fast, secure, and reliable installation across a wide range of construction and assembly applications. Designed with an integrated drill point, this screw is capable of drilling, tapping, and fastening in a single operation—eliminating the need for pre-drilled pilot holes and significantly reducing installation time and labor costs.
Manufactured from 304 or 410 stainless steel, the SS Cross Drilling Screw combines corrosion resistance with mechanical strength to meet different performance requirements. The round head with a cross (Phillips) recess provides smooth torque transfer, stable driving, and a clean, professional appearance after installation. Suitable for metal-to-metal, metal-to-wood, and metal-to-plastic fastening, this self-drilling screw is widely used in industrial fabrication, construction, HVAC systems, and general manufacturing.
Features & Benefits
- High-Quality Stainless Steel Construction: Made from premium 304 or 410 stainless steel for superior strength and corrosion resistance.
- Self-Drilling Tip: The built-in drill tip allows the SS Cross Drilling Screw to drill and tap in a single step — eliminating the need for pilot holes and reducing installation time.
- Round Cross Head Design: The cross round head provides a clean finish, strong torque transfer, and reduced risk of slippage during installation.
- Strong Thread Engagement: Deep, uniform threads offer enhanced holding power, ensuring tight fastening and resistance to vibration loosening.
Specification
|
Specification |
M2.9 |
M3.5 |
M4.2 |
M4.8 |
M5.5 |
M6.3 |
|
Pitch -p |
1.1 |
1.3 |
1.4 |
1.6 |
1.8 |
1.8 |
|
Head diameter -dk |
5.5 |
6.8 |
7.9 |
9.3 |
10.3 |
11.8 |
|
Head thickness -k |
2.3 |
2.5 |
3 |
3.5 |
3.9 |
4.5 |
FAQ:
Q1: What is the difference between 304 and 410 grade for self-drilling screws?
A: Grade 304 is an alloy containing chromium that provides excellent rust resistance for outdoor or humid environments. Grade 410 is a martensitic stainless steel that can be heat-treated to achieve much higher hardness, making it easier to penetrate thick metal sheets, though it has slightly lower corrosion resistance than 304.
Q2: Do I need to drill a pilot hole before using the SS Cross Drilling Screw?
A: No. The primary benefit of this fastener is its self-drilling tip, which creates the pilot hole and taps the threads in one single step. This saves time and reduces tool costs.
Q3: Are these screws magnetic?
A: Typically, 304 stainless steel is mostly non-magnetic. However, 410 stainless steel is a martensitic grade and is magnetic. Carbon steel fasteners are always strongly magnetic.
Q4: When should I choose stainless steel over carbon steel?
A: Choose stainless steel when your project involves marine exposure, high humidity, or requires a long service life without maintenance. Carbon steel is often chosen for budget-driven projects in strictly dry, indoor environments.
Q5: What tools are required for installation?
A: Standard Phillips screwdrivers or electric screwdrivers with a compatible cross bit can be used.
