M8 13mm Hex Knobs – 4 Styles, 3 Sizes
Print Profile(12)
Description
M8 Knobs Collection (13 mm Hex Nut) – 4 Styles, 3 Sizes
A complete collection of M8 knobs designed for mechanical applications, workshop equipment, 3D printers, jigs, clamps, and DIY projects
🔗 Other versions available:
The collection includes:
“Lobed Knobs”
“Wing Knobs”
“Knurled Knobs”
“Star Knobs”
Each model is available in three sizes:
- Small
- Medium
- Large
for a total of 12 different variants
Compatible with both nuts and bolts
All knobs have been designed to be used in two configurations
Female Version
By inserting an M8 nut into the internal hexagonal seat
Ideal for:
- threaded rods
- screws
- tie rods
- adjustable systems
Male Version
By inserting an M8 bolt directly into the knob
Ideal for creating:
- clamping screws
- adjustment knobs
- custom locking systems
New system with threaded caps
Each model includes two closing caps:
- Perforated cap for female through-configuration
- Closed cap for male configuration
The caps are screw-on and no longer snap-fit
Advantages:
- they eliminate the risk of teeth breaking during assembly and disassembly
- they allow repeated removals without wear
- they ensure a more secure closure
- they improve the final aesthetics of the knob
- they offer better sealing against dust and dirt
If you plan to use only one configuration you can simply not print the unnecessary cap
Optimized nut seat
The internal seat is designed to accommodate M8 nuts with a 13 mm hex
Features
- Nut hex: 13 mm
- Nut seat depth: 8 mm
- Bottom through hole: Ø8.25 mm
The 8 mm depth allows the use of both standard nuts and:
- Nyloc self-locking nuts
- prevailing torque self-locking nuts
- equivalent systems
Recommended assembly
The hexagonal seat has been deliberately designed with a tight tolerance to prevent the nut from rotating or coming loose during use
Female Configuration
Insert the nut into the seat and use a screw from the opposite side to pull it completely to the bottom of the seat. To facilitate the operation it may be useful to tighten the screw with a wrench
Male Configuration
Insert the bolt into the knob and screw an external nut onto the threaded part to pull the bolt completely into the seat until it stops. Continue tightening until the bolt is perfectly locked
This procedure ensures correct hardware positioning and maximum mechanical strength
Ideal for
- Workshop
- DIY
- CNC
- 3D Printers
- Jigs and fixtures
- Clamps
- Machine tools
- Adjustable equipment
- Technical furnishings
- Custom mechanical projects
Technical Specifications
Common Features
- Thread: M8
- Nut hex: 13 mm
- Nut seat depth: 8 mm
- Through hole: Ø8.25 mm
- Compatible with M8 nuts and bolts
- 4 different styles
- 3 sizes for each style
- 12 models included
- Compatible with standard nuts and self-locking nuts (Nyloc)
- Threaded caps included
Lobed Knob
| Size | Dimensions |
|---|---|
| Small | Ø36 × H16 mm |
| Medium | Ø48 × H20 mm |
| Large | Ø60 × H25 mm |
Diamond Knurled Knob
| Size | Dimensions |
|---|---|
| Small | Ø19 × H15 mm |
| Medium | Ø25 × H17 mm |
| Large | Ø32 × H25 mm |
Star Knob
| Size | Dimensions |
|---|---|
| Small | Ø19 × H16 mm |
| Medium | Ø26 × H19 mm |
| Large | Ø32 × H22 mm |
Wing Knob
| Size | Dimensions |
|---|---|
| Small | 42 × H19 mm |
| Medium | 56 × H20 mm |
| Large | 70 × H25 mm |
Recommended print settings
- Layer height: 0.20 mm
- Infill: 20–40%
- Walls: 3–5
- Material: PLA, PETG, ABS, ASA
- Supports: not needed
Designed to offer high mechanical strength, easy printing, and comfortable grip in everyday applications
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Membership
Support FabiuzWorks • Commercial License available for selling physical prints • Membership tiers available for supporters and priority design requests • Custom fitting, adapter, cap and plug requests are always welcome Check out my membership tiers for details.
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License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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