B&C Camera

Promaster Small Thread Adapter - 1/4"-20 female to 3/8"-16 male

Promaster Small Thread Adapter - 1/4"-20 female to 3/8"-16 male - Main image
$4.52 $6.95 In stock

Category: Support hardware

The Promaster Small Thread Adapter converts a 1/4”-20 female thread to a 3/8”-16 male thread, providing a reliable interface for mounting accessories that require the larger thread size.

  • Precise 1/4”-20 female to 3/8”-16 male thread conversion.
  • Compatible with standard camera support hardware and accessories.
  • Compact design fits in tight mounting locations.
  • Manufactured by Promaster, a trusted brand in photographic support equipment.
Completing your purchase

Take a moment to review your selection and total before payment.

Preparing your order

Please consider both preparation and transit when planning your purchase.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
Requesting a refund

Contact the store with your order details so your request can be reviewed.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery arrangements

The available delivery services and charges are listed below.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Before arranging a return

Speak with the store before arranging a return shipment.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.2 / 5 · 5 reviews)

Olivia ★★★★★

Fits perfectly on my light stand to use a 3/8" ball head, and the brass threading feels solid and precise. No wobble at all once tightened down.

Sebastian Q. ★★★★★

I needed this to mount a heavier microphone arm on my desk, and the brass threads feel solid enough that I’m not worried about stripping. No wobble once tightened.

Sebastian F. ★★★★☆

Finally, a thread adapter that actually fits tight without wobbling. Used it to mount a microphone adapter to my light stand, and the brass threading feels solid enough for regular use.