Knurled Thumb Screw
Screw with a knurled cylindrical head gripped and tightened by hand for tool-free assembly.
Manufacturing Scope
Knurled Thumb Screw is a Fasteners family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀8–18 mm, lengths 13–37 mm, standard material Brass (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 BAGB-KNS-10 at 37 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 BAGB-KNS-06: 29 mm long at ⌀12 mm, L/D 2.4. 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 BAGB-KNS-01 (⌀8 mm) and the largest BAGB-KNS-10 (⌀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 10 variants.
| Code | Dia ⌀ | Length | Feature | Tolerance | Std | Unit price |
|---|---|---|---|---|---|---|
| BAGB-KNS-01 | ⌀8 | 13 mm | M3 · knurl | 6g | Ø8 knurled head / M3 | 30.24 ₺ |
| BAGB-KNS-02 | ⌀8 | 19 mm | M3 · knurl | 6g | Ø8 knurled / M3 long | 33.89 ₺ |
| BAGB-KNS-03 | ⌀10 | 16 mm | M4 · knurl | 6g | Ø10 knurled head / M4 | 33.94 ₺ |
| BAGB-KNS-04 | ⌀10 | 24 mm | M4 · knurl | 6g | Ø10 knurled / M4 long | 38.88 ₺ |
| BAGB-KNS-05 | ⌀12 | 19 mm | M5 · knurl | 6g | Ø12 knurled head / M5 | 38.94 ₺ |
| BAGB-KNS-06 | ⌀12 | 29 mm | M5 · knurl | 6g | Ø12 knurled / M5 long | 45.68 ₺ |
| BAGB-KNS-07 | ⌀15 | 22 mm | M6 · knurl | 6g | Ø15 knurled head / M6 | 49.24 ₺ |
| BAGB-KNS-08 | ⌀15 | 33 mm | M6 · knurl | 6g | Ø15 knurled / M6 long | 59.52 ₺ |
| BAGB-KNS-09 | ⌀18 | 25 mm | M8 · knurl | 6g | Ø18 knurled head / M8 | 60.98 ₺ |
| BAGB-KNS-10 | ⌀18 | 37 mm | M8 · knurl | 6g | Ø18 knurled / M8 long | 74.35 ₺ |
Brass · 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.
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