RAM® Pin-Lock™ Ball Adapter

Part#: RAP-B-397BNHU
UPC: 793442948237
$9.49

Overview

This ball adapter features the RAM® Pin-Lock™ hole pattern for use with RAM® Tough-Claw™ and RAM Tough-Clamp™ products. It features a 1” B size rubber ball that’s compatible with a variety of B size RAM® double socket arms.

ball size:

B Size (1")

weight capacity:

Standard Use: 2 lbs
Heavy-Duty Use: 1 lb

materials:

High strength composite

packaging type:

Poly Bag

Weight:

0.06 lb

Return Policy:

All products purchased from RAM® can be returned within 30 days with no restocking fee (return shipping not provided). See full return policy here.

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QUESTIONS & ANSWERS

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  • Does the screw go through the top of the ball?

    This ball adapter the screw will go though the bottom. 

  • Hi, What is the diameter of the mounting plate?

    The diameter is 1.25".

  • I recently purchased the large tough-claw with a 1.5" C size ball. However, I needed the 1" B size ball. Can I purchase this B size Pin Lock Ball Adapter and use the same mounting screw that came with the orignial large tough claw and C size ball?

    Yes, you can use the RAP-B-397BNHU with the existing screw that keeps the C size version of that pin lock ball adapter in place. It will require more tightening as the screw with the C size ball is slightly longer, but it will work.

  • How do I get this to mount to my Tough-Claw? The screw that comes with it doesn't go through the top (it came in through the bottom). What size bolt should I get?

    This particular SKU does not come with any mounting screws. The screw that is used in the main assembly is a #10-24 x 1.75" stainless steel machine screw. This can be sourced through any local hardware store and should allow you to connect the ball to any Tough-Claw base.

RAM® Pin-Lock™ Ball Adapter
$9.49

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size — this product 1" ball
  • C Size 1.5" ball
  • D Size 2.25" ball
  • E Size 3.38" ball

Every RAM® mount is built around a rubber ball and socket system. The ball size sets how much weight the mount can carry. Match it to your device for smooth adjustment with a rock-solid hold.

RAM Mounts ball size specifications and typical uses
Size Ball Diameter Max Load* Best For
A0.56" (14.3 mm)0.5 lbAction cameras and other ultra-light devices
B — this product1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C1.5" (38.1 mm)4 lbsLarge tablets, fish finders, and rougher rides
D2.25" (57.2 mm)6 lbsRugged tablets, laptops, and heavy equipment
E3.38" (85.9 mm)15 lbsLarge displays and demanding aviation or industrial use

*Approximate capacity for a standard ball with a mid-length arm. Shorter arms and steel-reinforced posts increase real-world capacity.

Reading part numbers

The letter after RAM tells you the ball size: RAM-B-166 uses a 1" B ball, while RAM-D-201 uses a 2.25" D ball. C size parts are the exception and carry no letter, so RAM-201U is a C size arm.

Add-on & Accessories

B Size Double Socket Arms
See All
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