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All Ball Pro® - Set of Four 3/8"-16 Star Knobs

Original price $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99
In stock
SKU: SQ1085450
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$100 OFF ALL ORDERS $2000 & UP

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Product Overview
In short
This is a set of four 3/8"-16 star knobs designed to work on any unit within the last two years. Buyers should verify fitment by measuring the diameter of their unit's weld nut to confirm they need the 3/8" size rather than the 1/2" alternative.
✓ Authorized All Ball Pro Dealer — ships brand-new with full manufacturer support

The All Ball Pro Set of Four 3/8"-16 Star Knobs are designed to work on any unit manufactured within the last two years, using the 3/8" thread size.

Before purchasing, users should check whether their unit requires the 3/8" knob or the larger 1/2" knob by measuring the diameter of the weld nut on their equipment.

Specifications
SpecificationValue
Knob Size3/8"
CompatibilityWorks on any unit within the last two years
Set QuantityFour knobs
Fit VerificationCheck weld nut diameter to confirm 3/8" vs 1/2" knob size needed
Compare All Ball Pro models
Wheel Bolts
3/8" Knobs
THIS
1/2" Knobs
10" Wheels
Santoprene Set
Universal Uprights
Part type
Replacement wheel bolts
Part type
Replacement star knobs
Part type
Replacement clamping star knobs
Part type
Replacement wheel pair with mounting bolts
Part type
Non-marking indoor wheel set
Part type
Height-adjustable replacement uprights
Kit contents
Set of four bolts
Kit contents
Set of four knobs
Kit contents
Set of four knobs
Kit contents
2 wheels plus bolts
Kit contents
4 wheels plus bolts
Kit contents
Sold as a pair or single; weld nuts and knobs included
Wheel diameter
Wheel diameter
Wheel diameter
Wheel diameter
10 in.
Wheel diameter
10 in.
Wheel diameter
Wheel style & tread
Wheel style & tread
Wheel style & tread
Wheel style & tread
Spoked wheels
Wheel style & tread
Spoked; Santoprene rubberized no-scratch tread
Wheel style & tread
Bolt specification
4 1/4 in. long, 5/8 in. thread diameter
Bolt specification
Bolt specification
Bolt specification
4 1/4 in. long, 5/8 in. thread diameter
Bolt specification
Bolts included with pair of wheels
Bolt specification
Knob type & size
Knob type & size
3/8 in.-16 star knob
Knob type & size
1/2 in. 4-arm phenolic clamping knob, ergonomic grip
Knob type & size
Knob type & size
Knob type & size
1/2 in. knobs with 1/2 in. weld nuts included
Height adjustment positions
Height adjustment positions
Height adjustment positions
Height adjustment positions
Height adjustment positions
Height adjustment positions
Four holes at 16", 24 1/2", 38", 61 1/2"
Dimensions & build features
Dimensions & build features
Dimensions & build features
Dimensions & build features
Dimensions & build features
Dimensions & build features
63 in. tall, 2 in. square tube, top caps, weep holes
Fits which units
Any unit within the last two years
Fits which units
Any unit within the last two years
Fits which units
Fits most older green models
Fits which units
Any unit ever made
Fits which units
Fits which units
Past units with square metal tubing; not round piping
Fit check & use notes
First-gen incl. inflatable tires: only if bolts not welded
Fit check & use notes
Measure weld nut to confirm 3/8 in. vs 1/2 in.
Fit check & use notes
For controlling, positioning and tightening
Fit check & use notes
First-gen: usable if base-frame bolts are not welded
Fit check & use notes
Gyms, sports courts and other indoor applications
Fit check & use notes
Weep holes drain water from the tube bottom
Best for
Anyone replacing lost or worn 5/8 in. wheel bolts on a recent unit.
Best for
Owners of units from the last two years replacing 3/8 in.-16 knobs.
Best for
Owners of older green models needing fresh 1/2 in. clamping knobs.
Best for
Owners restoring outdoor mobility on any generation of unit with unwelded base bolts.
Best for
Gyms and sport courts that need four no-scratch wheels for indoor floors.
Best for
Programs replacing bent uprights and wanting four preset training heights.
$11.99$19.99$19.99$39.99$149.99$125.99
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Shipping & Returns

We offer standard 1-5 business day shipping (following dispatch) via LTL Freight, FedEx, UPS, DHL, or USPS. Orders typically process in 1-2 business days (starting the following business day). Shipping rates are usually calculated at checkout; however, we reserve the right to provide custom shipping quotes for oversized or specialized equipment.

60-DAY NO-HASSLE REFUNDS AND RETURNS

If there’s an issue with your product, we make refunds and returns quick and easy.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused or unused, with tags, and in its original packaging. To contact us, email info@joysportstore.com

More information on shipping and returns can be found here.

Warranty

All Ball Pro rebounders are built and warrantied by the manufacturer in St. Louis, Missouri. Standard factory coverage on a new rebounder is 1 year on the steel and 90 days on the net frame assembly, running from the date of purchase for the original owner.

What the manufacturer covers

  • Structural defects in the frame due to materials or workmanship
  • Netting tearing under normal use
  • Defective hardware fasteners (bolts, hinges, etc.)

Not covered

  • Normal wear and tear
  • Cosmetic damage (scratches, paint chips)
  • Misuse, abuse or improper installation
  • Unauthorized modifications or repairs
  • Environmental damage (saltwater corrosion, extreme weather, etc.)

Other All Ball Pro items — the fitted Unit Cover carries a 5-year manufacturer warranty. Passback training footballs are covered by no-fuss product replacement: the manufacturer replaces any football with a manufacturing defect.

How a claim works: proof of purchase is required and the unit must have been bought from an authorized reseller — which JoySportStore is. Submit the claim within 30 days of noticing the defect; the manufacturer decides whether the part is repaired or replaced, and a replacement may be new or refurbished. Shipping costs on warranty parts are the customer's responsibility. Coverage is non-transferable and applies to the original owner of the original unit.

An extended All Ball Pro Plus Protection Plan (1, 3 or 5 additional years, per rebounder model) is offered by the manufacturer and must be purchased within 30 days of the product purchase — ask us and we will put you in touch. As an authorized All Ball Pro dealer, JoySportStore files warranty claims with the factory on your behalf.

Frequently asked questions

What size are these knobs?

These are 3/8"-16 star knobs.

Will these knobs fit my unit?

They work on any unit within the last two years, but you should check to see if your unit uses the smaller 3/8" knob or the 1/2" knob by measuring the diameter of the weld nut.

How many knobs are included?

This is a set of four knobs.

Is JoySportStore an authorized All Ball Pro dealer?

Yes. JoySportStore is an authorized All Ball Pro dealer, so every rebounder, part and training ball ships brand-new from the factory in St. Louis, Missouri with full manufacturer support.