M4 Knobs 7mm Hex – 4 Styles, 3 Sizes

M4 Knobs Collection (7 mm Hex Nut) – 4 Styles, 3 Sizes

A complete collection of M4 knobs designed for mechanical applications, electronics, 3D Printers, bench equipment, jigs, small clamps, and DIY projects 

Compatible with standard M4 nuts, Nyloc self-locking nuts, and common M4 screws/bolts compliant with DIN 934, DIN 985, DIN 933, DIN 931, and DIN 912 standards

🔗 Other versions available

• M6 (10 mm hex) https://makerworld.com/it/models/2868831-m8-13mm-hex-knobs-4-styles-3-sizes#profileId-3202541

• M8 (13 mm hex) https://makerworld.com/it/models/2868831-m8-13mm-hex-knobs-4-styles-3-sizes#profileId-3202541

• M10 (17 mm hex) https://makerworld.com/it/models/2899419-m10-knobs-17mm-hex-4-styles-3-sizes#profileId-3240856

The collection includes

• Lobed Knobs

• Wing Knobs

• Diamond Knurled Knobs

• Star Knobs

New Wing Knob geometry

In this M4 version, a new geometry has been introduced for the Wing model

Compared to previous versions, the new design offers better dimensional efficiency, greater structural robustness, a better footprint-to-grip ratio, and a cleaner and more consistent print

(This new shape will also be progressively adopted in other already published collections)

Unlike previous collections, in this M4 version I have gathered all variants within a single print profile with named plates. This makes it easier to identify the desired model and quickly choose the most suitable size by consulting the dimensioned images in the gallery

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 M4 nut into the internal hex socket

Ideal for

• threaded rods
• screws
• tie rods
• adjustable systems

Male Version

By inserting an M4 bolt directly into the knob

Ideal for creating

• tightening screws
• adjustment knobs
• custom locking systems

Double cap included

Each model includes two end caps

Perforated cap

For use as a through-hole female knob

Closed cap

For use as a male knob with integrated bolt

The caps are designed with a screw-on fastening, in order to

• prevent breakage of the teeth during assembly and disassembly
• allow repeated opening and closing
• ensure a more stable and effective closure
• achieve a clean and professional finish

Since M4 components are particularly compact, slight pressure may be required during initial assembly to ensure the cap properly engages in its dedicated seat

After the first assembly and disassembly, operation usually becomes smoother

If you plan to use only one of the two configurations, you can simply avoid printing the unnecessary cap

Optimized nut seat

The internal seat is designed to accommodate M4 nuts with a 7 mm hex

Features

• Hex seat depth: 5 mm
• Bottom through hole: Ø4.25 mm

The 5 mm depth allows the use of not only standard nuts but also

• self-locking nuts with nylon insert (Nyloc)
• prevailing torque type self-locking nuts
• other equivalent locking systems

Recommended assembly

The hex seat has been deliberately designed with a tight tolerance to prevent the nut from rotating or slipping out 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 secured

This procedure ensures correct hardware positioning and maximum mechanical strength

Ideal for

• Workshop
• DIY
• CNC
• 3D Printers
• Jigs and fixtures
• Clamps
• Model making
• Electronics
• Adjustable equipment
• Custom mechanical projects

Technical Specifications

Common features

• Thread: M4
• Nut hex: 7 mm
• Nut seat depth: 5 mm
• Bottom through hole: Ø4.25 mm
• Compatible with M4 nuts and bolts
• 4 different styles
• 3 sizes for each style
• 12 models included
• Compatible with standard nuts and self-locking nuts (Nyloc)

Lobed Knob

Diamond Knurled Knob

Star Knob

Wing Knob

Recommended print settings

• Layer height: 0.10 mm – 0.16 mm
• Infill: 20–40%
• Walls: 2–5
• Material: PLA, PETG, ABS, ASA
• Supports: not required

Designed to offer high mechanical strength, easy printing, and comfortable grip in everyday applications

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