Ram RAP-S-KNOB3U Pin-Lock Security & Key Knob 1 Diameter B Size Arms

The RAP-S-KNOB5U consists of a 5/16-18 female threaded security knob and key knob. The RAP-S-KNOB5U replaces all knobs on 1.5 diameter C size arms and mounts. The RAP-S-KNOB5U offers the ideal amount of leverage to properly tighten your mount to prevent slippage in heavy chop or in extreme vibration environments.

Pin-Lock Security Knob and Key with 1 inch B-Socket Arms for RAM Mount - AliExpress

RAM Pin-Lock Security Knob B-Size

RAM Mounts Pin-Lock Security Knob - RevZilla

Q8mount, RAM Mounts

RAM Mounts Combination Pin-Lock Security And Key Knob for 1

RAM Pin-Lock Security Knob for B Size Socket Arms

RAM Mount Mixed Combination Pin-Lock Security Nut & Key Knob f/2.25/3.38 Diameter D/E Size Arms [RAP-S-NUT5U]

RAM Mounts Pin-Lock Security Knob - RevZilla

RAM Mounts Pin-Lock Security Knob - RevZilla

RAM Mixed Combination Pin-Lock Security Knob and Key Knob for 1 Dia B Size Arms

RAM Mount Mixed Combination Pin-Lock Security Knob and Key for 1 B Size Arms