RAM Mounts Pin-Lock Security Knob for B Size Socket Arms Contains RETIRED combined with an innovative tread

combined with an innovative tread pattern inspired by our Dakar winning MICHELIN Desert Race tire

86" drive pitch models feature tapered lugs on outside edges for improved durability

Made from hard-wearing materials

Industry leading grip and durability

Extended PU synthetic gaiter helps seal out excessive water and dirt entry

RAM Mounts Pin-Lock Security Knob for B Size Socket Arms Contains RETIRED combined with an innovative treadThis product is an Arm. You may need to purchase other components to complete your setup Consists of a 1 4" 20 female threaded security knob and key knob Replaces all knobs on 1" diameter B size arms and mounts Offers the ideal amount of leverage to properly tighten your mount to prevent slippage in heavy chop or in extreme vibration environments Low in profile and only adds a small amount of additional bulk to your system when compared to the