The Brass Collar Padlock from Master Series is a small, solid padlock designed to lock BDSM collars, cuffs, and restraint gear in place. Iron and copper construction with a copper finish. Two keys included. Non-keyed alike.

The shackle fits through the D-ring or buckle loop on most leather and nylon bondage collars and locks the collar in place. The body is compact enough to sit flush against the collar without adding bulk, but heavy enough to have real presence. Works on collars, cuffs, restraint straps, and anything else with a D-ring or loop that needs to stay closed.

Key Features
Collar and Restraint Padlock: Shackle fits through standard D-rings and buckle loops on BDSM collars, cuffs, and restraint gear.
Two Keys Included: Non-keyed alike. Each lock ships with its own unique key pair.
Iron and Copper Construction: Solid metal build with a warm copper finish. Not plated plastic.
Compact Profile: Small enough to sit flush on a collar. Large enough to feel substantial.
Versatile: Collars, wrist cuffs, ankle cuffs, gear bags, restraint buckles.


Q: Does this fit all collars?
A: The 0.12"" shackle fits most standard D-ring and buckle loop collars. Check your collar's D-ring inner diameter before ordering.

Q: Are the keys unique to each lock?
A: Yes. Non-keyed alike means each padlock has its own unique key pair.

Q: Is the collar included?
A: No. This listing is for the padlock and two keys only.

Length: 0.82" (20.8mm)
Width: 0.42" (10.7mm)
Height: 0.77" (1.95mm)
Height with Shackle: 1.38" (35.2mm)
Shackle Diameter: 0.12" (3.1mm)
Material: Iron, copper
Color: Copper
Keys: 2 included (non-keyed alike)
Brand: Master Series


Note: Collar not included. Store in a dry location to prevent oxidation.


Code: AJ034
09/09/2026