SS304 Hex Socket Ball Plunger Set Screw Spring-Loaded, with specifications ranging from M2.5 to M16, are elastic positioning fasteners that incorporate an internal spring and steel balls. They utilize the internal spring to provide elastic tension, enabling the positioning, limiting, retarding, and dividing functions for workpieces. They also possess elastic buffering and locking functions, and are widely used in various mechanical, mold, and automated equipment for precise positioning scenarios.
The SS304 Hex Socket Ball Plunger Set Screw Spring-Loaded (M2.5 - M16) are made of A2-70 grade stainless steel. At the end, there are freely rotatable carbon steel or stainless steel wave beads (balls) embedded. During installation, the threads are driven into the workpiece using a standard internal hexagonal wrench (such as H0.9 - H8), causing the wave beads to elastically press against the mating surface, achieving repeatable axial positioning. The screws possess the excellent corrosion resistance and hygiene properties of 304 stainless steel. The contact of the wave beads can reduce the wear on the mating surface, and are widely used in precision fixtures, optical adjustments, instrument positioning, automation equipment, etc., where frequent fine-tuning and scratch-free locking are required.

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Name
Hex Socket Ball Plunger Set Screw Spring-Loaded
Material
stainless steel 304
Standards
GB,DIN, BSW, JIS, UNC, UNF, Non-standard, Customized Drawing
Thread
Metric, UNC, UNF, BSW, BSF
Sizes
M2.5-M16
Finish
MOQ
Stardard item(Usually little hundred-little thousand)
Price
0.3USD/PCS-0.5USD/PCS
Product Feature
It is made of 304 stainless steel, which is rust-proof and corrosion-resistant, suitable for humid, mild acid and alkali environments; the internal hexagonal structure facilitates tool installation and has stable torque; the internal steel balls and springs are in perfect coordination, with uniform elasticity, smooth expansion and contraction, enabling stepless positioning and elastic compression; the headless design occupies less space and does not protrude from the surface of the workpiece after installation; it comes in a wide range of specifications, covering common sizes from M2.5 to M16, suitable for different loads and installation requirements, and the overall structure is stable and durable.
Our Strength
· Direct from manufacturer to customer, On time delivery
· Completely fastener products,offers one - stop shopping service.
· High quality and competitive price, saving your cost.
· Product complies with iso9001 and ts16949 certification
· After shippment, we will offer the Material report and Test report.
Product Application
It is mainly used in scenarios such as automated equipment, tooling fixtures, precision instruments, mold sliders, indexing mechanisms, and assembly line equipment, to achieve elastic positioning, indexing limitation, sliding guidance and anti-loosening retention of workpieces; it is also applicable to light industrial machinery, medical devices, packaging equipment, 3C electronics and various mechanical structures that require elastic compression and intermittent positioning, especially suitable for assembly environments with requirements for rust prevention and precision.
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Q: Are you trading company or manufacturer ?
A: We are factory
Q: How long is your delivery time?
A: Generally it is 2-5 days if the goods are in stock. or it takes around 20 days if the goods are not in stock, certainly,it is according to your quantity.
Q: Do u do Non-standard Fasteners,and How about the OEM/ODM?
A:Yes,we do Non-standard Fasteners,OEM/ODM as well,and we have 20 years more experience in this line.We have complete production line, R&D Center. Pre-sales and after-sales support. Let u no worries about the quality.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free,but u need charge the freight at the first time.
Q:Do you sell little quantity,like few hundred and few thousand?
A: It depends on the stock. if we have ,that's ok. if not,it needs MOQ.