Elesa+Ganter BT.25-SST-M6 Fluted Knob Guide
The Elesa+Ganter BT.25-SST-M6 fluted knob is a compact manual tightening component designed with a stainless steel blind threaded boss rather than a projecting stud. That detail makes it especially relevant in assemblies where designers want a cleaner external profile, controlled hand operation, and corrosion-conscious material selection without exposed threaded length.
Product Type and Technical Identity
This model belongs to the BT-SST execution of the BT fluted knob range. According to the official series data, BT-SST versions use a black matte polyamide-based technopolymer knob body together with an AISI 303 stainless steel boss and a threaded blind hole. For the exact code BT.25-SST-M6, the dimensional row lists a 26 mm knob diameter, M6 internal thread, 19 mm overall height, 16 mm upper diameter, 15 mm lower diameter, 8 mm internal reference, and a 9 mm final dimensional value.
Elesa+Ganter BT.25-SST-M6 Technical Highlights
- Brand: Elesa+Ganter
- Code: BT.25-SST-M6
- Product type: Fluted knob with blind threaded hole
- Body material: Polyamide-based technopolymer
- Insert material: AISI 303 stainless steel boss
- Thread: M6 internal blind thread
- Knob diameter: 26 mm
- Overall height: 19 mm
- Finish: Black, matte
- BT series temperature range: -30°C to +130°C
Why a Blind Threaded Boss Matters
The Elesa+Ganter BT.25-SST-M6 fluted knob is not a studded knob. Instead, it is intended to mate with an external male thread. This can simplify design in many machine assemblies because the user can mount the knob directly onto a prepared threaded shaft or screw without the extra clearance needed for a projecting stud behind the knob body.
That makes the model useful in situations where space behind the knob is limited, where assembly aesthetics matter, or where the designer wants to standardize around fixed threaded pins already present on the machine structure.
Where This Knob Is Typically Used
Applications often include covers, access panels, machine doors, fixture locks, instrument housings, setup points, and adjustment stations. The 26 mm diameter gives more hand contact than smaller BT.20 options, which can improve comfort during repeated tightening. The stainless boss also adds value where the internal threaded area could otherwise be vulnerable to corrosion over time.
Elesa+Ganter BT.25-SST-M6 For more information about Elesa+Ganter, it is worth exploring matching machine elements and complementary control components from the same range.
Elesa+Ganter BT.25-SST-M6 FAQ
What is the difference between BT.25-SST-M6 and a studded knob version?
This model uses a blind threaded stainless steel boss, so it screws onto a male thread already present in the assembly. A studded version has a male threaded shaft built into the knob itself. The right choice depends on whether the machine design requires an internal or external thread connection.
Why is the 26 mm diameter useful?
A 26 mm fluted knob offers a good balance between compact size and grip comfort. It is often preferred where operators need slightly more contact area than a 20 mm knob can provide, but still want a compact operating element.
Is AISI 303 stainless steel enough for industrial use?
For many standard industrial environments, AISI 303 offers a practical corrosion-resistant solution. It is commonly selected where basic rust resistance and reliable machining quality are required in the threaded insert area.
Can this knob replace a metal handwheel?
Not directly in every application. It is better viewed as a compact hand-operated clamping or adjustment knob rather than a large rotary control element. It works best where manual fastening is needed in a smaller footprint.
When is a blind threaded knob the better engineering decision?
It is often the better choice when the assembly already includes a fixed male thread, when rear clearance is restricted, or when the designer wants a cleaner and more integrated mounting approach without a projecting stud.