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      Home / Products / RAM 1/4" NPT Female Threaded Hole Base with 1" Ball - RAM-B-218-1U
      RAM 1/4" NPT Female Threaded Hole Base with 1" Ball - RAM-B-218-1U - OC Mounts

      RAM-B-218-1U

      RAM 1/4" NPT Female Threaded Hole Base with 1" Ball - RAM-B-218-1U

      $14.99 $16.49

      In Stock  - Ships for $3.99

      The RAM-B-218-1U consists of a 1" ball and 0.25" NPT female thread. This part connects to any 0.25" NPT male thread, including RAM-PF-585-X flex arm series mounts and RAM-PA54XX rigid arm series mounts.

      NPT Thread and Pipe Sizing:
      NPT (National Pipe Thread) is a standard used in joining pipes and fittings that have a tapered thread. As a general rule, the NPT inch size is the inside diameter of the threaded pipe and is known as the NPS (Nominal Pipe Size). The outer diameter (OD) of the pipe is shown in the table below:

      NPT Size (NPS) Pipe Outer Dia. (OD) Threads per inch
      0.25" 0.540" 18
      0.50" 0.840" 14
      1" 1.315" 11.5

       

      Material: 

      Powder Coated Marine Grade Aluminum 

      Ball Size:
      1" Rubber Ball "B" Size 

      Note: 
      The "U" in the part number reflects product packaged in poly bag. 

      Weight:
      0.05 lbs.

      RAM 1/4" NPT Female Threaded Hole Base with 1" Ball

      RAM® Mounts: Ball Sizes & Weight Capacities

      Compatible Arms and Mounts

      RAM 1" Ball Medium Length Double Socket Arm With 2.5" Round Base That Contains The AMPs Hole Pattern - RAM-B-103URAM 1" Ball Medium Length Double Socket Arm With 2.5" Round Base That Contains The AMPs Hole Pattern - RAM-B-103U

      RAM Medium Double Socket Arm, Long Double Socket Arm & Double Ball Adapter For B Size 1" Balls - RAM-B-201-201U-CRAM Medium Double Socket Arm, Long Double Socket Arm & Double Ball Adapter For B Size 1" Balls - RAM-B-201-201U-C

      RAM Short Double Socket Arm For B Size 1" Balls - RAM-B-201U-ARAM Short Double Socket Arm For B Size 1" Balls - RAM-B-201U-A

      RAM Long Length Double Socket Arm With Retention Arm For B Size 1" Balls - RAM-B-201U-C-ALA1RAM Long Length Double Socket Arm With Retention Arm For B Size 1" Balls - RAM-B-201U-C-ALA1

      RAM 18" Long Extension Pole With (2 Qty) 1" Single Open Sockets - RAP-BB-201-18URAM 18" Long Extension Pole With (2 Qty) 1" Single Open Sockets - RAP-BB-201-18U

      RAM 1" Ball Short Length Double Socket Arm With Diamond Base - RAM-B-103-A-238URAM 1" Ball Short Length Double Socket Arm With Diamond Base - RAM-B-103-A-238U

      RAM Short Double Socket Arm With Retention Knob For B Size 1" Balls - RAM-B-201-A-ALA1-KRURAM Short Double Socket Arm With Retention Knob For B Size 1" Balls - RAM-B-201-A-ALA1-KRU

      RAM Double Socket Arm With Retention Knob For B Size 1" Balls - RAM-B-201-ALA1-KRURAM Double Socket Arm With Retention Knob For B Size 1" Balls - RAM-B-201-ALA1-KRU

      RAM Double Socket Arm With RAM® Pin-Lock™ Security Knob And Key Knob For B Size 1" Balls - RAM-B-201-SURAM Double Socket Arm With RAM® Pin-Lock™ Security Knob And Key Knob For B Size 1" Balls - RAM-B-201-SU

      RAM® X-Grip® Cradle With 1" Ball & Medium Length Double Socket Arm For 7"-8" Tablets - RAM-HOL-UN8B-201URAM® X-Grip® Cradle With 1" Ball & Medium Length Double Socket Arm For 7"-8" Tablets - RAM-HOL-UN8B-201U

      Price Match

      Yes No

      OC Mounts will NOT price match: 
      - Items from online marketplaces, auction sites, or sites that require membership.
      - Items from unauthorized partners of RAM Mounts. (RAM will gladly tell you who is an authorized partner.) 
      - Misprinted ad prices of other retailers or “going out of business"/closeout sales. 
      - Ads for free gift or gift card with purchase. Percentage Off or Buy One, Get One Free and Out of Stock/Backorder items. 
      - Instant Rebates, Bundle Offers, Free Shipping Offers, Mail-in Offers, or Offers that include financing      .

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