HELP – Bolts + Hardware

HARDWARE

We offer a range of tools and hardware, including bolts (standard, flathead, and buttonhead), t-nuts, screws, drill bits, and wrenches.

• Bolt Sizes: The "Hardware Recommended" section on each product page provides the bolt size for most walls with t-nuts from flush to a 1/4"-1/2" recession. If your t-nuts are more recessed (3/4" or more), let us know so we can provide the correct bolt length.

• Bolts:

• Standard Bolts (Socket Cap): 3/8" x 16 thread, fully threaded for 1.5" bolts. Longer bolts have an unthreaded neck.

• Martini Bolts (Flat Head Socket Cap): For holds with countersunk attachment points. These require a 7/32" wrench.

• Buttonhead Bolts: Low-profile, suitable for footholds. These also take a 7/32" wrench.

• Materials: Bolts are available in alloy (black, standard climbing hold bolts) or stainless steel (for outdoor/wet conditions, with a slight upcharge).

• Standard vs Metric: We use standard 3/8" bolts in the US, while Metric M10 bolts are common in the UK and Europe. M10 bolts are slightly larger in diameter, and will not fit in standard US t-nuts. It’s important to use matching bolts and t-nuts to avoid damage. If you order bolts, we will provide ⅜” bolts unless you specifically order otherwise.

• Screws: Screws can be included upon request. 

• Sizes: 

• Up to 2" are 8-gauge T-25 (torx head) self-tapping wood screws

• 3.5" and longer are 9-gauge T-25 torx

• T-Nuts:

• We offer zinc and stainless pound-in t-nuts and zinc screw-in (3-screw) t-nuts, designed to fit holes drilled with a 7/16" bit. Pound-in are ok for home use but for any commercial use we strongly recommend screw-in t-nuts.

• We can also get industrial t-nuts, for holes drilled with a 17/32" or 9/16" drill bit

• Tools:

• Hand wrenches - 5/16” and 7/32”

• 5/16” bits – for standard bolts – impact end, 2” or 3” long

• 7/32” bits – for martini bolts – impact end, 2” long

• T25 bits – impact-end, 2” and 3” long