Elesa+Ganter BT.32-SST-P-M8X40-SV25 Fluted Knob Explained
The Elesa+Ganter BT.32-SST-P-M8X40-SV25 fluted knob is part of the BT-SST-p-SV series developed for manual clamping applications where both grip comfort and contact protection are important. This version uses the same core material platform as the series: a black polyamide-based technopolymer knob, an AISI 303 stainless steel threaded stud with spherical end, and a black POM technopolymer thrust pad. What makes this exact model distinct is its M8x40 threaded stud paired with the SV25 pad geometry, giving users extra reach compared with shorter variants while maintaining the same 32 mm knob diameter.
Verified Dimensions and Construction
The official dimensional table identifies this model with code 108723. It specifies D = 32 mm, thread = M8, L = 22 mm, d1 = 17 mm, d2 = 21 mm, d3 = 25 mm, d4 = 6 mm, l1 = 40 mm, l2 = 9 mm, l3 = 5.5 mm, l4 = 10.5 mm, and l5 = 6 mm. These measurements place the Elesa+Ganter BT.32-SST-P-M8X40-SV25 fluted knob in a useful middle position for assemblies that need more threaded engagement than a 30 mm version but do not require the maximum reach of a 50 mm stud.
Why This Configuration Matters
In mechanical design, component length is rarely a minor detail. The 40 mm stud can make a noticeable difference when the knob must pass through a bracket, panel, or slotted element before reaching the threaded or clamped interface. At the same time, the thrust pad helps maintain a less aggressive contact point on the surface being secured. That makes this model relevant for adjustable machine parts, guard positioning, fixture alignment, and manual locking points where repeated changes are expected.
Material Benefits in Daily Industrial Use
The PA body offers a balance between strength, handling comfort, and weight, while the stainless steel stud supports use in sectors where corrosion-resistant materials are preferred. The POM thrust pad adds a practical layer of protection in setups where direct metal contact could leave visible marks or create localized stress. For more information, visit Elesa+Ganter.
Typical Use Cases
This fluted knob is well suited to machine adjustment points, guarding hardware, modular frames, operator-side manual locking positions, and light-to-medium clamping assemblies. The fluted profile supports hand operation without relying on tools, which is useful in environments where quick setup changes are routine.
FAQ
What is the difference between the M8x30 and M8x40 versions?
The core materials and knob diameter remain the same, but the threaded stud length changes from 30 mm to 40 mm. That extra 10 mm can be important when the knob must extend through thicker sections or when deeper engagement is needed in the assembly.
Is the SV25 version intended for delicate surfaces?
It is better suited than a bare stud design when surface marking is a concern. The thrust pad is specifically intended to avoid direct contact between the stud and the locked surface, which can help preserve finishes and reduce wear.
Elesa+Ganter BT.32-SST-P-M8X40-SV25 What industries may benefit from this style of knob?
Applications can be found in packaging equipment, light industrial machinery, maintenance fixtures, production-line accessories, and custom mechanical assemblies. Any setup that needs repeatable hand tightening with reduced surface damage can benefit from this design.
Elesa+Ganter BT.32-SST-P-M8X40-SV25 Does stainless steel automatically mean outdoor suitability?
Not automatically. AISI 303 stainless steel improves corrosion resistance, but the actual environment still matters. Humidity, cleaning chemicals, salt exposure, and maintenance practices all affect long-term suitability. Engineers should always check the real operating conditions.
Why is the fluted knob format still popular?
Because it offers a reliable grip and intuitive manual use. In many machines, operators and technicians prefer simple hand-tightening hardware that is quick to identify, easy to adjust, and comfortable to use repeatedly during setup or service work.