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Fumbling with a hex key to tighten your tripod head or camera rail in the field wastes time and breaks your creative flow. These anodized aluminum thumb screw knob bolts let you lock and adjust photography equipment quickly by hand — no tools required — while adding a clean, color-matched finish to your rig.
Machined from high-strength aluminum alloy with a CNC lathe and CNC computer gong process, each L-type locking knob screw features a large ergonomic grip head for firm hand-tightening and an iron nickel-plated threaded shank for durability. Available in M4, M5, M6, and 1/4"-20 thread sizes, lengths from 10mm to 35mm (approximately 0.39” to 1.38”), and 4 anodized colors — Red, Black, Silver, and Blue.
These thumb screw knob bolts are ideal for fixing and adjusting camera tripods, pan-tilt heads, camera sliders, monitor arms, follow focus rigs, and other adjustable photography and videography equipment where fast, tool-free hand adjustment is required.
Ideal for quickly locking and adjusting camera tripods, ball heads, pan-tilt heads, and camera sliders in the field without needing to carry hex keys or other tools.
Use as locking knobs on follow focus rigs, monitor arms, matte boxes, and other modular cinema accessories where fast, repeatable hand-tightening is essential during a shoot.
Suitable for fixing and adjusting studio lighting stands, boom arms, and other adjustable studio equipment where color-coded knobs help identify different adjustment points at a glance.
A versatile hand-grip knob bolt for any DIY project or equipment modification requiring a tool-free locking fastener with an ergonomic grip — from custom rigs to workshop jigs.
| Material | Aluminum Alloy body (anodized); Iron Nickel-Plated threaded shank |
|---|---|
| Type | L-Type Locking Knob Screw (Thumb Screw / Hand Grip Bolt) |
| Thread Sizes | M4, M5, M6, 1/4"-20 UNC |
| Available Lengths | 10mm, 12mm, 14mm, 17mm, 20mm, 25mm, 30mm, 35mm (Note: 1/4" available in 17mm only) |
| Available Colors | Red, Black, Silver, Blue (anodized) |
| Surface Treatment | Anodized (aluminum body); Nickel plating (shank) |
| Manufacturing Process | CNC Lathe, CNC Computer Gong Processing |
| Applicable Equipment | Camera tripods, pan-tilt heads, camera sliders, monitor arms, follow focus rigs, studio equipment, and other adjustable photography/videography accessories |
These knob bolts are available in M4, M5, M6 metric thread sizes and 1/4"-20 UNC (the standard camera and tripod thread used worldwide). Select your thread size and length from the variant options above. Note that the 1/4" size is currently available in 17mm length only.
The 1/4"-20 UNC thread is the standard mounting thread used on most camera tripods, ball heads, pan-tilt heads, and photography accessories worldwide. It is the most common thread for attaching cameras and accessories to tripod plates and quick-release systems.
Yes. The L-type knob head is specifically designed for firm hand-tightening without tools. The large ergonomic grip provides enough leverage for secure locking in most photography and videography equipment adjustment applications.
The knob head is machined from high-strength aluminum alloy with an anodized surface finish. The threaded shank uses iron with nickel plating for reliable thread engagement and corrosion resistance. The combination keeps the overall weight low while maintaining durability.
The anodized finish is integrated into the surface of the aluminum rather than applied as a paint or coating, which means it is generally more resistant to fading and chipping than painted alternatives under normal studio and field use conditions.
These thumb screw knob bolts are compatible with any photography or videography equipment that uses standard M4, M5, M6, or 1/4"-20 threaded mounting points, including camera tripods, ball heads, pan-tilt handles, camera sliders, monitor arms, follow focus rigs, matte boxes, and studio lighting stands.
Yes. Red, Black, Silver, and Blue anodized finishes are available across the M4, M5, and M6 thread sizes. The 1/4" size is available in all four colors at 17mm length. Select your preferred color and size combination from the variant dropdown above.
