Name/Title
CAMP Pentanut 4Entry/Object ID
2026.1.132Description
A "Pentanut" manufactured by Camp in 1985Use
Climbing Hardware, designed to fit into narrow, tapered rock cracks, locking securely when weighted.Context
This is a pentanut manufactured by CAMP in 1985. It is a number 4, which was the largest size from 1-4. The design was so the nut could be rotated 180 degrees, fitting a wider variety of cracks.
"Early forms of rock protection took the hexagonal shape and name ‘nuts’ from the engineers nuts that had been used previously to jam into rock fissures for running belays and anchors. A multitude of variations on the theme followed, these five-sided ‘Pentanuts’ was one. Created by the Italian company CAMP in 1985 they had a limited success on the continent, with very few making it over the channel to the UK, the more versatile ‘Friends’ & other camming devices being more popular..." -Excerpt from Scottish Mountain Heritage Collection (SMHC).Collection
Yosemite Climbing Museum Permanent CollectionCategory
Climbing Hardware, Nuts/Chocks
Made/Created
Manufacturer
CAMPDate made
1985Inscription/Signature/Marks
Type
Makers MarkTranscription
CAMP 4Dimensions
Dimension Description
Entire Wire with NutDimension Description
NutWidth
2 inLength
1-3/8 inLocation
Location
Display Case
Exhibit Case 11Date
February 10, 2026General Notes
Note Type
Cataloging NoteNote
Caption in the museum is: "The clean climbing movement of the 1970’s spurred many hammer-less climbing gear options. Some worked pretty well in Yosemite cracks, others not so much, potentially putting the climber at risk. The generic term for hammer-less gear is Nuts."Create Date
February 10, 2026Update Date
March 10, 2026