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Silver steel spring clamp with 5/8 inch stud and socket, jaws open 5-40mm

Kupo

Kupo Alli Clamp Silver 302412 5-40mm studio

SKU CH-R66N-DH8Q0

A steel spring clamp with three attachment methods — spring tension, 5/8" female socket and baby 5/8" stud — gripping 5-40mm objects in a silver finish

  • Product typeLighting
  • Three attachment options for versatile rigging
  • Spring-loaded jaws grip 5-40 mm securely
  • Built-in 5/8" baby stud mounts lights directly
  • 5/8" female receiver accepts standard spigots
  • Silver steel finish resists wear on set

Kupo Alli Clamp 302412 — versatile grip

The Kupo Alli Clamp 302412 is a steel spring clamp built for photographers, videographers and studio professionals who need a single tool that can hold lights, flags, fill cards or microphones. It offers three attachment methods: spring tension jaws, a 5/8 inch female socket and a baby 5/8 inch stud, so it fits directly onto standard baby receivers without extra adapters.

Sustained hold on set

The jaw opens from .2 to 1.6 inch (5-40mm) and maintains consistent spring pressure during long shoots, keeping flags or lightweight fixtures from slipping as cables tug or temperatures shift. The stainless steel finish resists corrosion under hot studio lights and repeated handling, while the 16mm baby stud and socket stay tight without developing play after repeated mounting cycles.

Fast rigging, few surprises

Slip the clamp onto a pipe, board or light stand, then seat a 5/8 inch stud into the baby receiver — no tools required. The only common issue is over-tightening the spring on very thin materials, which can leave faint marks; using a scrap of gaffer tape on the jaws prevents this without reducing grip.

How it compares

Measured against everything we stock in Photo Lighting & Studio Flashes, at today’s prices. Recalculated every night.

Price $26.99
Cheaper than about 80% of the 3,696 comparable items (median $57.99).

Specifications

Product
Product typeLighting

Questions about this item

Does the steel spring generate heat or noise when clamped all day on a light?

The Alli Clamp is a passive steel spring clamp with no moving electronics, so it produces no heat and no audible noise during continuous use.

What mounting hardware must I already own to attach a light or flag to the 5/8 inch baby receiver?

You need a standard baby 5/8 inch (16 mm) stud on the accessory you want to mount; the clamp’s receiver accepts that stud directly.

Will the 5 mm to 40 mm jaw range grip the thinner rails on my older C-stands and boom arms?

Yes, the jaws open from 5 mm to 40 mm, so they can secure both slim legacy rails and thicker modern tubing within that span.

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