Regular Steel Bolts

  • 3/8" diameter
  • UNC threads 
  • Available in lengths:  1", 1.5", 2", 2.5", 3", 3.5", 4", 5", 6"
  • To tighten these bolts you will require a 5/16" Allen key or you can use our specially designed Ergo Wrench.
  • Countersunk Head bolts availble in 1.5" length and require a 7/32" Allen key, or our Ergo Wrench.
  • HOW TO ATTACH A CLIMBING HOLD TO A PLYWOOD WALL - Click Here
  • All bolt-on holds/sets require socket head type bolts, except for the Classic Footholds Set which requires countersunk head bolts.
  • All bolts Uncarved Block sells are imperial 3/8" diameter with UNC threads. All holds compatible with 10mm metric bolts.
  • Unless otherwise stated, t-nuts are not included with holds or sets.
  • Any items shown in pictures other than holds are to show scale and are not included with purchase.
  • More information about hold colors click here.
  • Bolts optionally supplied with holds/sets are suited for 17 mm thick climbing walls, if you require longer bolts order these separately.
  • It is cheaper & faster to select random colours.

Excellent

By: on 5 February 2026
Excellent service, exactly what I was looking for!
(5)

Amazing

By: on 5 February 2026
100%what I was looking for at an amazing cost! Would recommend and plan on buying more
(5)

Perfect

By: on 5 February 2026
Perfect- just what I was looking for
(5)

Just Work

By: on 4 February 2026
All supplied bolts just work, always the correct number and sizes. Excellent service.,
(5)

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