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• Drive Type: Hex Socket
| Standard | Configurable | |
| Unhardened | +0.15 +0.05 | +0.1 0 |
| Hardened | +0.2 0 | +0.2 0 |
| D Tolerance (g6) | |
| 4~6 | -0.004 -0.012 |
| 8, 10 | -0.005 -0.014 |
| 12~15 | -0.006 -0.017 |
Materials
| Standard | Configurable | [ M ]Material | [ H ]Hardness | [ S ]Surface Treatment | ||||
| Standard Grade | Precision Grade | Standard Grade | Precision Grade | |||||
| D | -0.01 -0.05 | Dg6 | D | -0.01 -0.05 | Dg6 | |||
| CBDBR | CBDGBR | FCBDBR | FCBDGBR | 1045 Carbon Steel Equivalent | - | Black Oxide | ||
| CBDBRH | - | FCBDBRH | - | 40~45HRC | ||||
| CBDR | CBDGR | FCBDR | FCBDGR | 303 Stainless Steel Equivalent | - | - | ||

Frequently asked questions about this product (FAQ)
1. How can we avoid rust on the step screws used for the support points?
If there are requirements for rust prevention, please prioritize choosing SUS304 material products.
Products that have not undergone surface treatment need to be regularly coated with anti rust oil for maintenance, in order to extend the anti rust time.
2. Is a full inspection conducted when managing the quality of step screws used for support points?
Strictly inspect each process link. And conduct a full inspection of the main process steps. Conduct a full inspection upon final shipment.
3. How to avoid the occurrence of thread breakage when the fulcrum is tightened with step screws?
Please tighten the bolts within the tightening torque range, otherwise excessive torque may cause thread breakage.
Please click on the bolt tightening torque for details
4. Can the L size selection type of step screw for fulcrum be used to machine the root undercut of the thread?
may not. The L size selection type cannot choose to perform root undercut machining on the M size part. If you need a thread root undercut, please choose a machining PC with L size freely specified. Click on the specific L size to specify the type
In precision fixture design and machining setups, managing lateral forces without compromising workpiece positioning is a daily reality on the shop floor. Relying on standard detent components for lateral workholding often leads to pin binding, premature wear, and workpiece deflection.
Mold assembly precision directly dictates manufacturing throughput. Minor component failures cause catastrophic tool damage, unacceptable scrap rates, and severe production bottlenecks. Engineers face constant challenges on the floor.
Quick positioning, alignment, indexing, and securing components in sheet metal or thin-walled enclosures presents a strict mechanical limitation. You face insufficient material thickness to support standard threaded hardware.
Specifying the wrong spring plunger often results in micro-misalignments, premature component wear, or catastrophic part ejection failures during high-speed machining and automation cycles.
In precision engineering, the reliability of positioning, indexing, and holding mechanisms depends entirely on the point of contact between the plunger and the workpiece.
Component failure in indexing, positioning, or ejecting mechanisms frequently traces back to a single engineering oversight: specifying the wrong material for the operating environment.
The relentless demand for miniaturization in medical devices, aerospace components, and consumer electronics requires mechanical hardware that fits microscopic footprints without sacrificing tactile feedback, holding force, or the ability to facilitate easy positioning and removal of parts.
Precise component positioning in mechanical assemblies dictates the difference between seamless indexing and mechanical binding. A fraction of a millimeter in plunger travel matters. Engineers must control this movement to ensure reliable machine operation.
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