Pop Pin M16 x 1.5 x 30mm Screw-In - Spring Loaded Pull Pin with Ball Lock Knob

Pop Pin M16 x 1.5 x 30mm Screw-In - Spring Loaded Pull Pin with Ball Lock Knob

M16 x 1.5 Fine Thread, 30mm Long | 8mm Spring-Loaded Pin | 49mm Ball Lock Knob | Spin Bikes, Benches & Machines

The small pop pin - the one on spin bike seat posts and handlebar stems, bench seat sliders and the lighter adjustments on strength machines. This M16 x 1.5 screw-in pull pin replaces a stripped, snapped or missing one: an 8mm spring-loaded pin that snaps into the adjustment hole, and a two-tone ball knob that screws down to lock the setting so it can't rattle loose mid-session.

To adjust: loosen the knob, pull, move the post or slider, release - the pin springs into the next hole, then tighten the knob to lock. Screws straight into an M16 x 1.5 threaded boss; no tools, no drilling.

Key Features

• M16 x 1.5 fine thread, 30mm long: the common size on spin bikes and light adjustments - check the pitch, not just the diameter.
• Lock-down ball knob: 49mm ribbed ABS knob screws tight once the pin is seated, marked with the loosen-then-pull instruction.
• Spring-loaded 8mm steel pin: retracts cleanly and snaps home into the next hole.
• Steel and ABS build: zinc-plated steel thread and pin, moulded knob that's easy to grip with sweaty hands.
• Two-minute swap: unscrew the old pin, screw this one in, done.
• Ships from Sydney: small-parcel delivery Australia-wide.

Technical Specifications

Will it fit?

Three things to check on your old pin: the thread (M16 measures about 16mm across the outside of the thread), the pitch (this is the 1.5mm fine pitch - a standard-pitch M16 x 2.0 pin looks the same but won't thread in cleanly, so compare the thread spacing against the old pin or try it by hand before forcing it) and the pin diameter (8mm - it has to match the holes in the seat post or slider). If your old pin measures around 20mm across the thread, you want the M20 pop pin instead. Anything else, contact us with the model code from the frame label and a photo.

Warranty

Full terms are on our Warranty Policy page.

FAQs

How do I install it?
Loosen the old knob, pull the pin out of the hole and unscrew the whole pin anticlockwise. Screw the new one in clockwise until it seats, pull the knob to check the pin retracts and springs back, set your adjustment and tighten the knob.

What does "loosen then pull" mean?
The knob doubles as a lock. With the pin in a hole, screwing the knob down clamps it so it can't vibrate out. To move the adjustment, back the knob off a turn first, then pull.

M16 or M20 - which one do I need?
Measure across the outside of the old pin's thread: about 16mm is this one, about 20mm is the M20 pop pin. Spin bikes and seat sliders are usually M16; bench backrests and rack adjustments are usually M20.

Where are these used?
Spin bike seat posts and handlebar stems, bench seat and back sliders, foot plate and pad adjustments on lighter machines - anywhere a small spring pin sets a position.

Shop More: Spare Parts | M20 Pop Pin | Magnetic Weight Stack Pins | Cable Pulley 150mm | Exercise Bikes | Benches