Stainless Steel Knurled Thumb Screws with Waisted Shank
Product Overview
Knurled thumb screws with waisted shank are essential components in fastening applications requiring manual adjustments without tools. Featuring a uniquely designed knurled head for easy grip and a waisted shank for precise engagement and alignment, these screws are widely used in electronic enclosures, machinery panels, and other light-duty fastening assemblies. Made of corrosion-resistant stainless steel, they offer both durability and functionality for repeatable installation and removal.
At Flybear Fastener, we provide a complete range of high-quality knurled thumb screws designed for high performance across an array of applications.
Product Specification Table
| Parameter | Detail |
|---|---|
| Product Name | Knurled Thumb Screws with Waisted Shank |
| Material | Stainless Steel A2 / A4 |
| Drive Type | Manual / Tool-Free |
| Head Style | Knurled Round Head |
| Thread Type | Metric / UNC / UNF Others |
| Finish / Coating | Natural (Passivated) |
| Thread Sizes | M3 – M10, #4-40 to 3/8-16 |
| Length Range | 6 mm – 60 mm |
| Customization | Available Upon Request |
Technical Parameters
| Characteristic | Specification |
|---|---|
| Tolerance | ISO 2768-mK |
| Thread Precision | 6g / Class 2A |
| Strength Grade | A2-70 / A4-80 Stainless Steel |
| Operating Temperature | -50°C to +300°C |
| Corrosion Resistance Class | High (Suitable for marine environment) |
Materials and Manufacturing Process
These knurled thumb screws with waisted shank are manufactured using high-grade stainless steels such as A2 (304) and A4 (316), selected for their excellent corrosion resistance, strength, and longevity.
The production process includes cold forming or CNC machining to achieve accurate dimensions, followed by precision thread rolling, heat treatment for enhanced mechanical properties, and final passivation for optimal corrosion resistance. The knurled head is meticulously formed for ergonomic grip, aiding in tool-free installation and removal.
Common Applications and Industries
Knurled thumb screws are frequently used in:
- Electrical Panels and Cabinets
- Consumer Electronics
- Laboratory and Medical Equipment
- Automotive Interior Assemblies
- Aerospace Instrumentation
- IT & Server Rack Components
Their easy-to-use design and admirable appearance also make them popular in consumer product assembly and custom fabrication shops.
Product Advantages and Competitive Edge
Advantages of Knurled Thumb Screws with Waisted Shank
- Premium Material: Made from A2 or A4 stainless steel for excellent rust resistance, even in harsh marine or chemical environments.
- Precision Engineering: Threads are tightly controlled for dimensional accuracy and superior engagement.
- Advanced Finishing: Passivated to enhance corrosion resistance and prolong service life.
- Flexible Customization: Custom designs available according to customer drawings or functional requirements.
- Inventory Readiness: Large stock ensures short lead times and prompt dispatch.
- Comprehensive Support: Fast technical support and professional post-sales service.
Quality Control and Testing at Flybear Fastener
Flybear Fastener guarantees a rigorous quality assurance strategy that includes raw material inspection, dimensional analysis, thread gauge testing, tensile strength testing, and salt spray corrosion testing. Every batch of screws is verified to meet international standards like ISO, DIN, and ANSI before delivery to customers worldwide.
Knurled Thumb Screws Selection & Purchase Guide
Choosing the right knurled thumb screw depends on the following criteria:
- Thread standard and pitch (Metric or Inch)
- Screw length and thread engagement depth
- Shank design (waisted vs full thread)
- Environmental exposure (select between A2 or A4 stainless)
- Load bearing and torque handling qualities
For OEMs, designers, and procurement managers, understanding usage conditions will aid in selecting the optimal product. Don’t hesitate to contact us for expert assistance.
Conclusion and Company Introduction
If you’re in need of high-quality fastener products like knurled thumb screws with waisted shanks, or require reliable solutions for your manufacturing or engineering project, contact us at Flybear Fastener.
We always adhere to the philosophy of “Quality First, Customer Centric,” and are committed to delivering superior fasteners and all-in-one fastening solutions.
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