Kupo

Kupo KG012512 3.5" Baby Stud 3/8" Thread

4.8 (64 reviews)

Durable 3.5-inch aluminum baby stud with 3/8"-16 thread for secure lighting and accessory mounting.

$9.95*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Kupo KG012512 is a 3.5-inch baby stud designed to serve as a reliable connection point between lighting instruments and grip support hardware. Featuring a 5/8-inch baby pin — the standard diameter used across the film, photography, and event lighting industries — it slots securely into grip heads, C-stand receivers, and other baby-mount fixtures. The 3/8"-16 male thread on the opposite end provides a universal attachment point for lights, accessories, and adapters that use this common thread pitch.

Machined from aluminum, the KG012512 strikes a practical balance between weight and durability. It is light enough to avoid adding unnecessary load to your rigging while remaining strong enough to handle the demands of daily professional use. At 3.5 inches in length, it sits firmly in receivers without protruding excessively, keeping your setup clean and compact. For gaffers, grips, and photographers who rely on standard baby-mount hardware, this Kupo stud is a dependable kit staple that ensures secure, repeatable mounting every time.

Key Features

SPECIFICATIONS: Steel baby stud mounting pin with standard 5/8" interface, 3.5" length, and integrated 3/8"-16 male thread for monitor and grip mounting in photography and video production.

PROFESSIONAL THREAD SUPPORT: 3/8"-16 male thread provides compatibility with mounting hardware and grip accessories.

STUD LENGTH: 3.5" profile supports clean setups while providing adequate spacing for secure mounting.

STEEL BUILD: Solid steel construction ensures strength and long term reliability during repeated professional use.

GRIP COMPONENT: Ideal for photographers and videographers needing dependable mounting pins for monitors and grip accessories.

Specifications

Brand
Kupo
Model
KG012512
Length
3.5 inches
Stud Size
5/8" Baby Pin
Thread
3/8"-16 Male
Material
Aluminum

Pros & Cons

👍 Pros

  • Aluminum construction is lightweight yet strong enough for reliable support of lighting fixtures.
  • Standard 5/8-inch baby pin ensures compatibility with a wide range of grip heads and receivers.
  • 3/8"-16 male thread accommodates common mounting hardware and adapters.
  • 3.5-inch length provides stable seating in receivers without adding unnecessary bulk.
  • Simple, single-purpose design means fewer points of failure on set.

👎 Cons

  • Only available in one length, which may be too short or too long for certain specialized setups.
  • Aluminum may strip more easily than steel if over-tightened repeatedly.
  • Does not include a locking mechanism — relies on the receiving hardware for a secure hold.
  • Single thread option limits versatility compared to studs that offer multiple thread sizes.

Frequently Asked Questions

It has a 3/8"-16 male thread on one end, which is a standard size for mounting lighting fixtures and grip equipment.
The stud features a 5/8-inch (baby) pin, which is the industry-standard size for fitting into baby receivers and grip heads.
It is constructed from aluminum, keeping it lightweight while maintaining the strength needed for secure mounting.
The stud is 3.5 inches long, providing enough length for stable insertion into receivers while keeping a low profile.
Yes, the 5/8-inch baby pin fits standard grip heads, C-stand receivers, and other baby-mount hardware commonly used on set.