Knurled Thumb Screw
Hand-tightened knurled head screw for tool-free adjustments.
Manufacturing Scope
Knurled Thumb Screw is a Fasteners family precision-turned on a Goodway SW-20, covering 11 variants — diameters ⌀8–18 mm, lengths 15–48 mm, standard material Stainless Steel (also steel, stainless, brass or aluminium). Every variant's part code, dimension and tolerance is listed below; request an instant quote with the code you need.
The family is machined from ⌀18 mm bar stock; its longest variant is BAGA-TRT-11 at 48 mm. Besides turning, the family requires thread turning (5 sizes from M3 to M8) and knurling. All of it is completed in a single setup, without the part leaving the machine.
The variant with the highest length-to-diameter ratio is BAGA-TRT-06: 32 mm long at ⌀12 mm, L/D 2.7. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to 6g tolerance; the smallest is BAGA-TRT-01 (⌀8 mm) and the largest BAGA-TRT-11 (⌀18 mm). The family includes threaded, knurled, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
This is a dimension schematic, not a manufacturing drawing. Dimensions match the catalog data; request a quote with the part code to confirm before production.
Code & Size Table
Code, dimensions and tolerance for all 11 variants.
| Code | Dia ⌀ | Length | Feature | Tolerance | Std | Unit price |
|---|---|---|---|---|---|---|
| BAGA-TRT-01 | ⌀8 | 15 mm | M3 · knurl | 6g | knurled head – hand tightening | 37.33 ₺ |
| BAGA-TRT-02 | ⌀8 | 21 mm | M3 · knurl | 6g | knurled head – long body | 43.85 ₺ |
| BAGA-TRT-03 | ⌀10 | 18 mm | M4 · knurl | 6g | knurled head – hand tightening | 42.32 ₺ |
| BAGA-TRT-04 | ⌀10 | 26 mm | M4 · knurl | 6g | knurled head – long body | 51.37 ₺ |
| BAGA-TRT-05 | ⌀12 | 22 mm | M5 · knurl | 6g | knurled head – hand tightening | 53.57 ₺ |
| BAGA-TRT-06 | ⌀12 | 32 mm | M5 · knurl | 6g | knurled head – long body | 68.33 ₺ |
| BAGA-TRT-07 | ⌀15 | 26 mm | M6 · knurl | 6g | knurled head – hand tightening | 65.69 ₺ |
| BAGA-TRT-08 | ⌀15 | 38 mm | M6 · knurl | 6g | knurled head – long body | 85.62 ₺ |
| BAGA-TRT-09 | ⌀18 | 35 mm | M6 · knurl | 6g | knurled head – stepped neck | 103.85 ₺ |
| BAGA-TRT-10 | ⌀18 | 33 mm | M8 · knurl | 6g | knurled head – hand tightening | 93.33 ₺ |
| BAGA-TRT-11 | ⌀18 | 48 mm | M8 · knurl | 6g | knurled head – long body | 125.52 ₺ |
Stainless Steel · for 100 pcs · estimated unit price, valid 7 days · excl. VAT · Contact us for a firm quote.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. For custom sizes/tolerances, contact us with the part code.
Other Families in This Category
Back to categorySimilar Parts in Other Categories
Let Us Create a Solution
Tailored to Your Needs
Contact us to discuss your project. Let our technical team determine the most suitable solution.