Application guide for Slotted Knurled Thumb Screws, High Type to DIN 465. The core duty of the type is a high knurled thumb screw with a slot and a collar, tightened by hand and finished with a screwdriver. The typical industries, the how-to-specify checklist, assembly practice and the exclusion cases are set out below. Stocked across roughly M1 to M10, they cover general to heavy-duty work.
Typical Applications for Slotted Knurled Thumb Screws, High Type
The most common settings where these are specified:
- Laboratory equipment: stands and clamps adjusted by hand.
- Test fixtures: quick-change plates and stops.
- Optical mounts: fine positional adjustment.
- Machine guards: access panels opened without tools.
How to Specify Slotted Knurled Thumb Screws, High Type for Your Application
- Size: Match the nominal size to the mating thread or hole. This product spans M1–M10; check the full table below for the exact dimensions of each size.
- Drive & head: Pick the drive (socket, cross, slot) and head style for the tool access and seating surface; a recessed drive resists cam-out under power tools.
- Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- Standard: This product is supplied to DIN 465. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.
Installation & Assembly Practice
- Match the driver exactly to the recess (PH ≠ PZ; hex key sizes per ISO 2936) and keep the tool axial — side load is the main cause of stripped drives.
- In tapped holes, engage a thread length of at least 1× the nominal diameter in steel, 2× in aluminum.
- Set power tools to a torque that seats the head without embedding it into the mating surface.
Common Selection Mistakes with Slotted Knurled Thumb Screws, High Type
- Under-sizing the drive for the installation torque — a small recess at high torque strips before the screw is seated.
- Using a countersunk head in thin sheet where the countersink removes most of the load-bearing material.
- Specifying stainless in high-strength duty: A2-70 is roughly class 7 steel, not a 10.9 substitute.
Where Slotted Knurled Thumb Screws, High Type Are Not the Right Choice
Not for high-preload structural joints (use a property-class bolt and nut), and not in thin sheet where a self-drilling or self-tapping type suits better.
Custom manufacturing · Made to drawing
Need a slotted knurled thumb screws, high type outside the standard range?
Dimensions, material, finish and form are specified from the drawing — a screw outside the standard range is a variation on existing tooling rather than a new design. Made by cold heading or warm forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
