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ThunderHex Stock & Accessories

In stock
Compatible with
products and accessories.
FRC legal.

ThunderHex Stock & Bearings will revolutionize the ways teams use hex shaft.

ThunderHex Stock works in all applications where 3/8" or 1/2" Hex Shaft will work and also includes rounded corners. These rounded corners allow the shaft to pilot inside a 10.25 or 13.75 mm round (ThunderHex) Bearing instead of a standard 1/2" Hex Bearing. This eliminates some difficult manufacturing tolerances and results in a MUCH smoother end result. Simply put, ThunderHex Bearings are the best way to create smooth-running hex shafts, and ThunderHex Stock helps you accomplish this without a lathe.

Also, since you're essentially putting a round peg in a round hole, no more struggling to align the hex of your shaft with the hex hole of your bearing.

All ThunderHex Stock also includes a subtle but very useful feature: a 0.201" hole through the center. This hole provides a clearance fit for a #10 bolt or can be tapped for 1/4-20 bolts. This means that you no longer need a precision lathe to create custom-length, high-strength standoffs; simply cut the ThunderHex shaft to size and tap it with a 1/4-20 (or 1/4-28) thread.

* a product option is currently out of stock
main product photo
Thunderhex Bearings ▼▲
Grouped product items
Product Name SKU Qty
10.25mm (3/8" ThunderHex) ID x 0.875" OD x 0.280" WD (Flanged Bearing) 10.25mm (3/8" ThunderHex) ID x 0.875" OD x 0.280" WD (Flanged Bearing)
$2.99
Add to Wish List
217-5829
10.25mm (3/8" ThunderHex) ID x 0.875" OD x 0.280" WD (Flanged Bearing) (10-Pack) 10.25mm (3/8" ThunderHex) ID x 0.875" OD x 0.280" WD (Flanged Bearing) (10-Pack)
$19.99
Add to Wish List
217-6721
.302" (1/4" ThunderSquare) ID x 0.875" OD x 0.280" WD (Flanged Bearing) .302" (1/4" ThunderSquare) ID x 0.875" OD x 0.280" WD (Flanged Bearing)
$2.99
Add to Wish List
217-5830
.302" (1/4" ThunderSquare) ID x 0.875" OD x 0.280" WD (Flanged Bearing) (11-Pack) .302" (1/4" ThunderSquare) ID x 0.875" OD x 0.280" WD (Flanged Bearing) (11-Pack)
$19.99
Add to Wish List
217-6722
13.75mm (1/2" ThunderHex ID) x 1.125" OD x 0.313" WD (Flanged Bearing) (12-Pack) 13.75mm (1/2" ThunderHex ID) x 1.125" OD x 0.313" WD (Flanged Bearing) (12-Pack)
$35.99
Add to Wish List
217-6718
13.75mm (1/2" ThunderHex ID) x 1.125" OD x 0.313" WD (Flanged Bearing) 13.75mm (1/2" ThunderHex ID) x 1.125" OD x 0.313" WD (Flanged Bearing)
$3.99
Add to Wish List
217-4006
13.75mm (1/2" ThunderHex ID) x 1.125" OD x 0.313" WD (Radial Bearing) (13-Pack) 13.75mm (1/2" ThunderHex ID) x 1.125" OD x 0.313" WD (Radial Bearing) (13-Pack)
$24.99
Add to Wish List
217-6719
3/8" Hex Thunderhex Stock ▼▲
Grouped product items
Product Name SKU Qty
3/8" Hex x .165" ID ThunderHex Stock (36") 3/8" Hex x .165" ID ThunderHex Stock (36")
$19.99
Add to Wish List
217-5837
1/2" Hex Thunderhex Stock ▼▲
Grouped product items
Product Name SKU Qty
1/2" Hex x 0.201" ID ThunderHex Stock (36") 1/2" Hex x 0.201" ID ThunderHex Stock (36")
$24.99
Add to Wish List
217-4017
Out of stock
1/2" Hex x 0.159" ID ThunderHex Stock (36") 1/2" Hex x 0.159" ID ThunderHex Stock (36")
$24.99
Add to Wish List
217-8631
Thunderhex Bushings ▼▲
Grouped product items
Product Name SKU Qty
13.75mm (1/2" ThunderHex) ID x .750" OD x 0.313" WD (Plastic Flanged Bushing) (10-Pack) 13.75mm (1/2" ThunderHex) ID x .750" OD x 0.313" WD (Plastic Flanged Bushing) (10-Pack)
$8.99
Add to Wish List
217-7347
13.75mm (1/2" ThunderHex) ID x 0.750" OD x 0.313" WD (Bronze Flanged Bushing) (6-Pack) 13.75mm (1/2" ThunderHex) ID x 0.750" OD x 0.313" WD (Bronze Flanged Bushing) (6-Pack)
$16.99
Add to Wish List
217-7348
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Example Shaft Modifications

Combine 1/2" Hex Stock, ThunderHex Bearings, 1/2" Hex Bearings, and 1/2" Round Bearings to create a multi-step shaft using only simple machining techniques! Reduce shaft retainers or spacers in your design by creatively integrating bearing shoulders into your designs.

217-5837:

  • (1) 3/8" ThunderHex Stock (36")

217-4002:

  • (1) 1/2" ThunderHex Stock (18")

217-4017:

  • (1) 1/2" ThunderHex Stock (3")

217-7345

  • (10) 10.25mm (3/8 ThunderHex) ID x 0.625" OD x 0.313" WD (Plastic Flanged Bushing)

217-7346

  • (6) 10.25mm (3/8' ThunderHex) ID x 0.625' OD x 0.313' WD (Bronze Flanged Bushing)

217-7347

  • (10) 13.75mm (1/2" ThunderHex) ID x 0.625" OD x 0.313" WD (Plastic Flanged Bushing)

217-7348

  • (6)13.75mm (1/2" ThunderHex) ID x 0.625" OD x 0.313" WD (Bronze Flanged Bushing)

ThunderHex Stock

  • 7075 T6 Aluminum

Bushings

  • 217-7345 / 217-7347- Acetal
  • 217-7346 / 217-7348- Oil Impregnated Bronze
  • ThunderHex Stock - Black Anodized

ThunderHex Stock

  • 217-4002 (1/2" ThunderHex Stock 18") - 0.3 lb
  • 217-4017 (1/2" ThunderHex Stock 36") - 0.666 lb
  • 217-8631 (1/2" Hex x 0.159" ID ThunderHex Stock (36") - 0.7 lb
  • 217-5837 (3/8" Hex x .165" ID ThunderHex Stock 36") - .40 lb

"Thunder" Bearings

  • (217-5830) .302" (1/4" ThunderSquare) ID x 0.875" OD x 0.280" WD (Flanged Bearing) : 0.04 lb
  • (217-5829) 10.25mm (3/8" ThunderHex) ID x 0.875" OD x 0.280" WD (Flanged Bearing) : 0.04 lb
  • (217-4006) 13.75mm (1/2" ThunderHex ID) x 1.125" OD x 0.313" WD (Flanged Bearing) : 0.05 lb
  • (217-4270) 13.75mm (1/2" ThunderHex) ID x 1.125" OD x 0.313" WD (Radial Bearing) : 0.048 lb

ThunderHex Bushings

  • 0.004lbs each

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