Grainger 1RB67 - 1/4" UNC knurled screw with hex socket

Grainger 1RB67, 1/4" UNC knurled screw with hex socket for photo thread

With the Grainger 1RB67 you’re adding one of those inconspicuous but extremely useful little parts to your setup that are simply meant to work – no fuss, no fiddling. A compact knurled screw with hex socket, designed for the classic 1/4" UNC photo thread you know from tripods, quick-release plates, camera mounts and all kinds of accessories.

Precise 1/4" UNC right-hand thread for photo and video equipment

The screw’s thread corresponds to the common 1/4" UNC right-hand thread, which is virtually the standard in photography and video. This means the Grainger 1RB67 fits typical photo threads on camera plates, mounts, adapters and many other components. Thanks to the cleanly cut UNC thread, it is easy to start, screw in precisely and loosen again, without you ever feeling that anything is cross-threading or binding.

Knurled screw with hex socket – finger grip or tool, you decide

The combination of knurled head and hex socket makes the screw pleasantly flexible in everyday use. You can simply grip and tighten it with your fingers when things need to go quickly or you don’t have a tool at hand. For really solid connections or when space is tight, you use the hex socket and tighten the screw in a controlled way with a suitable hex key. This gives you a mix of comfort and precision, both in a component that takes up hardly any space.

Cylindrical head with grippy knurling

The screw type is a cylindrical head with circumferential knurling. This knurled structure gives you enough grip to hold the screw securely even with slightly damp or cold fingers. The head diameter is about 0.375" (9.53 mm), which offers a good balance between handling and compactness. Not too large to get in the way, but big enough that you can turn it without fumbling.

Durable 18-8 stainless steel for everyday use

The Grainger 1RB67 is made from 18-8 stainless steel. This material is corrosion-resistant and therefore ideal if you use your equipment not only in the studio but also outdoors, in changing weather, high humidity or simply in rougher everyday conditions. The stainless steel provides stability, a clean thread profile and a long service life, even if you frequently loosen and retighten the screw.

Compact dimensions for flexible mounting

The screw is deliberately kept short and compact so it can be used in many ways without protruding excessively or catching on anything. The thread length is 1/4" (6.35 mm), which is ideal for many photo-thread applications, such as fastening plates, clamps or small adapters. The overall length is 7/8" (22.25 mm), including the head. With a head height of 0.250" (6.35 mm), it stays low enough not to get in the way, but high enough to be easy to grip.

Ideal for photo threads, adapters, plates and special solutions

Whether you want to securely fix a camera on a plate, fasten a mount to a rail or attach a small accessory with a photo thread, the Grainger 1RB67 is suitable for a wide range of applications involving 1/4" UNC photo threads. It is particularly practical if you frequently rebuild, test or adapt your setup to changing situations, whether in the studio, in a home setup or on the road. We’d call it a typical “always-with-you screw” that you’d rather have in your pocket one time too many than too few.

Clean workmanship for reliable connections

Thanks to the precisely manufactured dimensions of thread length, head height and head diameter, the screw sits securely and without play in matching components. The combination of knurling and hex socket ensures that you can tighten it both sensitively and with force, depending on what your application requires. Especially in photo and video equipment, where nothing should come loose unintentionally, this reliability is a real advantage.