Copperhead Climbing Nuts
Copperhead Climbing Nuts were originally developed as chocks for clean climbers, which is why I included them here. Nowadays they are primarily used as bashies for aid climbing on harder nail-ups where they are artfully pounded into thin seams to provide marginal bodyweight support. These placements cannot be trusted to hold a fall — they rarely will.

Copperhead data tables in my Forrest Mountaineering Ltd. catalogs from 1974 to 1983 list cable sizes of 3/32", 3/32", 1/8", 5/32" and 3/16" for Copperhead sizes #1 through #5, respectively. I have an earlier (undated) Forrest brochure that listed 1/16" for the #1's cable. That version was much weaker, rated at only 480 lbs (2.1 kN) under ideal laboratory conditions. The #1 (either version) and #2 Copperheads should only be trusted for direct aid.
Forrest discontinued making copperheads long ago, but Fish and others continue making them to support the demand of aid climbers. Original Forrest Copperheads are difficult to find and even more difficult to verify, as there are no distinct features that make specific brand identification practical.
↑ 414: Forrest Copperhead Climbing Nut
- Made in USA [ca. 1967].
- #1–S: 13x4 mm.
- Plated head, short version.
↑ 326: Forrest Copperhead Climbing Nut
- Made in USA [ca. 1967].
- #3: 18x9 mm.
- Plated head, standard length.
↑ 333: Forrest Copperhead Climbing Nut
- Made in USA [ca. 1967].
- #3–S: 18x9 mm.
- Bare head, short version. Originally a nut head, now primarily a bashie.
↑ 412: Forrest Copperhead Climbing Nut
- Made in USA [ca. 1967].
- #4: 22x10 mm.
- Bare head, standard length.
↑ 413: Forrest Copperhead Climbing Nut
- Made in USA [ca. 1967].
- #4–S: 22x10 mm.
- Plated head, short version.
Double Crimp
Copperhead Climbing Nuts with a Double Crimp on the loop are newer than those with a triple crimp.
↑ Set 161-163: Forrest Wired Foxheads
- Made in USA [ca. 1970].
- #1–#3
- Double crimp. Early Forrest logo.
↑ 161: Forrest Wired Foxhead
- Made in USA [ca. 1970].
- #1: 19, 24 mm.
- Double crimp. Early Forrest logo.
↑ 162: Forrest Wired Foxhead
- Made in USA [ca. 1970].
- #2: 22, 30 mm.
- Double crimp. Early Forrest logo.
↑ 163: Forrest Wired Foxhead
- Made in USA [ca. 1970].
- #3: 24, 35 mm.
- Double crimp. Early Forrest logo.
Double Crimp
Copperhead Climbing Nuts with a Double Crimp on the loop are newer than those with a triple crimp.
↑ Set 631-633: Forrest Short Wired Foxheads
- Made in USA.
- Double crimp. Early Forrest logo.
↑ 631: Forrest Short Wired Foxhead
- Made in USA [ca. 1970].
- #1–S: 19, 24 mm.
- Double crimp. Early Forrest logo.
↑ 632: Forrest Short Wired Foxhead
- Made in USA [ca. 1970].
- #2–S: 22, 30 mm.
- Double crimp. Early Forrest logo.
↑ 633: Forrest Short Wired Foxhead
- Made in USA [ca. 1970].
- #3–S: 24, 35 mm.
- Double crimp. Early Forrest logo.
Titons

1983 Forrest Mountaineering Catalog
Plain Titons
I am missing plain sizes T3 and #9.
↑ Set 734-737, 120, 119, 324, 738;: Forrest Titons; T1–T2, T4–T5, #6–#8, #10
- Made in USA.
- Slotted webbing holes.
↑ 734: Forrest Titon; T1
- Made in USA [1970s].
- Size: 12x17 mm.
- Weight: 8 g.
- Stem has a 11.5 mm. slot for webbing.
- Stainless steel.
- Raised Forrest logo and "T1" on top.
- From Mike Gerbman, 2025.
↑ 735: Forrest Titon; T2
- Made in USA [1970s].
- Size: 16x22 mm.
- Weight: 18 g.
- Stem has a 12.7 mm. slot for webbing.
- Stainless steel.
- Raised Forrest logo and "T2" on top.
- From Mike Gerbman, 2025.
↑ 736: Forrest Titon; T4
- Made in USA [1970s].
- Size: 22x31 mm.
- Weight: 40 g.
- Stem has a 19 mm. slot for webbing.
- Stainless steel.
- Raised Forrest logo and "T4" on top.
- From Mike Gerbman, 2025.
↑ 742: Forrest Titon; T4
- Made in USA [ca. 1976].
- Size: 22x31 mm.
- Weight: 40 g.
- Stem has a 19 mm. slot for webbing.
- Cadmium–plated stainless steel.
- Raised Forrest logo and "T4" on top.
↑ 737: Forrest Titon; T5
- Made in USA [1970s].
- Size: 25x34 mm.
- Weight: 53 g.
- Stem has a 19 mm. slot for webbing.
- Stainless steel.
- Raised Forrest logo and "T5" on top.
- From Mike Gerbman, 2025.
↑ 740: Forrest Titon; T5
- Made in USA [ca. 1976].
- Size: 25x34 mm.
- Weight: 53 g.
- Stem has a 19 mm. slot for webbing.
- Cadmium–plated stainless steel.
- Raised Forrest logo and "T5" on top.
- From Mike Gerbman, 2025.
↑ 743: Forrest Titon; #6
- Made in USA.
- Size: 31x44 mm.
- Weight: 37 g.
- Stem has a 25 mm. slot for webbing.
- Aluminum alloy.
- Stamped with the Forrest logo and "6" on top.
- From Mike Gerbman, 2025.
↑ 120: Forrest Titon; #6
- Made in USA [ca. 1973].
- Size: 31x44 mm.
- Weight: 37 g.
- Stem has a 25 mm. slot for webbing.
- Aluminum alloy.
- Stamped with the Forrest logo and "6" on top.
↑ 119: Forrest Titon; #7
- Made in USA [ca. 1973].
- Size: 37x54 mm.
- Weight: 55 g.
- Stem has a 25 mm. slot for webbing.
- Aluminum alloy.
- Stamped with "7" and the Forrest logo on top.
↑ 324: Forrest Titon; #8
- Made in USA [ca. 1973].
- Size: 50x70 mm.
- Weight: 105 g.
- Stem has a 25 mm. slot for webbing.
- Aluminum alloy.
- Stamped with "8" and the Forrest logo on top.
↑ 738: Forrest Titon; #10
- Made in USA [1970s].
- Size: 50x89 mm.
- Weight: 233 g.
- Stem has two 25 mm. slots for webbing.
- Aluminum alloy.
- Stamped "1 0" on top.
- From Mike Gerbman, 2025.
Colored Titons
I am missing the painted size T1.
The 1974 Forrest catalog gives T1-#9 Titon colors but gives #10 as "Alum."
Apparently, Forrest did not offer a color-anodized #10.
↑ Set 739, 122, 296, 121, 297, 118, 741, 298: Forrest Titons; T2–T5, #6–#9
- Made in USA.
- Slotted webbing holes.
↑ 739: Forrest Titon; T2
- Made in USA [1970s].
- Size: 16x22 mm.
- Weight: 18 g.
- Stem has a 12.7 mm. slot for webbing.
- Painted stainless steel.
- Raised Forrest logo and "T3" on top.
- In the 1974 Forrest Catalog, the T1 is white and the T2 is yellow.
This T2 has yellow paint over an underlying white. - From Mike Gerbman, 2025.
↑ 122: Forrest Titon; T3
- Made in USA [ca. 1974].
- Size: 18x25 mm.
- Weight: 25 g.
- Stem has a 19 mm. slot for webbing.
- Painted stainless steel.
- Raised Forrest logo and "T3" on top.
↑ 296: Forrest Titon; T4
- Made in USA [ca. 1974].
- Size: 22x31 mm.
- Weight: 40 g.
- Stem has a 19 mm. slot for webbing.
- Painted stainless steel.
- Raised Forrest logo and "T4" on top.
↑ 121: Forrest Titon; T5
- Made in USA [ca. 1974].
- Size: 25x34 mm.
- Weight: 53 g.
- Stem has a 19 mm. slot for webbing.
- Painted stainless steel.
- Raised Forrest logo and "T5" on top.
↑ 297: Forrest Titon; #6
- Made in USA [ca. 1974].
- Size: 31x43 mm.
- Weight: 37 g.
- Stem has a 25 mm. slot for webbing.
- Anodized aluminum alloy.
- Stamped with the Forrest logo and "6" on top.
↑ 118: Forrest Titon; #7
- Made in USA [ca. 1974].
- Size: 37x54 mm.
- Weight: 54 g.
- Stem has a 25 mm. slot for webbing.
- Anodized aluminum alloy.
- Stamped with the Forrest logo and "7" on top.
↑ 741: Forrest Titon; #8
- Made in USA [ca. 1974].
- Size: 50x70 mm.
- Weight: 103 g.
- Stem has a 25 mm. slot for webbing.
- Anodized aluminum alloy.
- Stamped with the Forrest logo and "8" on top.
- From Mike Gerbman, 2025.
↑ 298: Forrest Titon; #9
- Made in USA [ca. 1974].
- Size: 63x83 mm.
- Weight: 160 g.
- Stem has a 25 mm. slot for webbing.
- Anodized aluminum alloy.
- Stamped with the Forrest logo and "9" on top.
Drilled Titons
H3>
↑ Set 109-117: Forrest Drilled Titons; #9–#17 (⇆)
- Made in USA [1980].
- Round sling holes. Top has lightening holes.
- Aluminum alloy.
↑ 109: Forrest Drilled Titon; #9
- Made in USA [1980].
- Size: 50x79 mm.
- Weight: 99 g.
- Two 19–mm. round sling holes.
Top has 3 12–mm. holes on each side.
Smaller than the slotted versions. - Aluminum alloy.
- Stamped with Forrest logo and "9" on top.
↑ 110: Forrest Drilled Titon; #10
- Made in USA [1980].
- Size: 50x89 mm.
- Weight: 108 g.
- Two 19–mm. round sling holes.
Top has 4 12–mm. holes on each side.
Smaller than the slotted versions. - Aluminum alloy.
- Stamped with Forrest logo and "10" on top.
↑ 111: Forrest Drilled Titon; #11
- Made in USA [1980].
- Size: 50x99 mm.
- Weight: 119 g.
- Two 19–mm. round sling holes.
Top has 5 12–mm. holes on each side. - Aluminum alloy.
- Stamped with Forrest logo and "11" on top.
↑ 112: Forrest Drilled Titon; #12
- Made in USA [1980].
- Size: 50x114 mm.
- Weight: 138 g.
- Three 19–mm. round sling holes.
Top has 5 12–mm. holes on each side. - Aluminum alloy.
- Stamped with Forrest logo and "12" on top.
↑ 113: Forrest Drilled Titon; #13
- Made in USA [1980].
- Size: 50x126 mm.
- Weight: 153 g.
- Three 19–mm. round sling holes.
Top has 6 12–mm. holes on each side. - Aluminum alloy.
- Stamped with Forrest logo and "13" on top.
↑ 114: Forrest Drilled Titon; #14
- Made in USA [1980].
- Size: 50x140 mm.
- Weight: 169 g.
- Three 19–mm. round sling holes.
Top has 7 12–mm. holes on each side. - Aluminum alloy.
- Stamped with Forrest logo and "14" on top.
↑ 115: Forrest Drilled Titon; #15
- Made in USA [1980].
- Size: 50x152 mm.
- Weight: 188 g.
- Three 19–mm. round sling holes.
Top has 7 12–mm. holes on each side. - Aluminum alloy.
- Stamped with Forrest logo and "15" on top.
↑ 116: Forrest Drilled Titon; #16
- Made in USA [1980].
- Size: 50x165 mm.
- Weight: 203 g.
- Three 19–mm. round sling holes.
Top has 8 12–mm. holes on each side. - Aluminum alloy.
- Stamped with Forrest logo and "16" on top.
↑ 117: Forrest Drilled Titon; #17
- Made in USA [1980].
- Size: 50x177 mm.
- Weight: 218 g.
- Three 19–mm. round sling holes.
Top has 9 12–mm. holes on each side. - Aluminum alloy.
- Stamped with Forrest logo and "17" on top.