Knurled Spacer Washer
Bored spacer washer with knurled grip surface for hand adjustment.
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 | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| ARAK-KNL-08 | 8 | 6 | knurl · ⌀4.3 | h10 | ⌀4.3 bore, knurled |
| ARAK-KNL-10 | 10 | 7 | knurl · ⌀5.3 | h10 | ⌀5.3 bore, knurled |
| ARAK-KNL-12 | 12 | 8 | knurl · ⌀6.4 | h10 | ⌀6.4 bore, knurled |
| ARAK-KNL-12S | 12 | 10 | knurl · ⌀5.3 · 2 steps | h10 | ⌀5.3 bore, knurled cap |
| ARAK-KNL-14 | 14 | 9 | knurl · ⌀6.4 | h10 | ⌀6.4 bore, knurled |
| ARAK-KNL-15 | 15 | 10 | knurl · ⌀8.4 | h10 | ⌀8.4 bore, knurled |
| ARAK-KNL-16 | 16 | 10 | knurl · ⌀8.4 | h10 | ⌀8.4 bore, knurled |
| ARAK-KNL-16T | 16 | 11 | knurl · ⌀10 | h10 | M6 internal thread, knurled |
| ARAK-KNL-18 | 18 | 12 | knurl · ⌀10.5 | h10 | ⌀10.5 bore, knurled |
| ARAK-KNL-20 | 20 | 14 | knurl · ⌀10.5 | h10 | ⌀10.5 bore, knurled |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Knurled Spacer Washer is a Spacers & Standoffs family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀8–20 mm, lengths 6–14 mm, standard material Aluminium (also steel, stainless steel or brass). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀20 mm bar stock; its longest variant is ARAK-KNL-20 at 14 mm. Besides turning, the family requires knurling. Bores in this family run ⌀4.3–10.5 mm. 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 ARAK-KNL-12S: 10 mm long at ⌀12 mm, L/D 0.8. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to h10 tolerance; the smallest is ARAK-KNL-08 (⌀8 mm) and the largest ARAK-KNL-20 (⌀20 mm). The family includes knurled, bored, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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