Name/Title
Charlie Porter Nut #2Entry/Object ID
2026.1.69Description
A Charlie Porter Slider Nut on swaged wireUse
Designed to fit into narrow, tapered rock cracks, locking securely when weightedContext
Charlie Porter was a prolific climber in the 1970s. He also manufactured his own nuts in a small stone building in Briceburg, just down the highway between Midpines and Yosemite. This ingenious design combined two stoppers, one being upside down so that when you weighted it, it would fit nicely into a parallel crack, something you couldn't do with only one stopper. Climbers would try this method with two individual stoppers, but sometimes would drop one of them, while trying to fit them together. Porter's design allowed for both stoppers to be on one wire, eliminating this flaw.Collection
Yosemite Climbing Museum Permanent CollectionCategory
Climbing Hardware, Nuts/Chocks
Acquisition
Accession
2026.1Notes
Unknown AcquisitionInscription/Signature/Marks
Type
InscriptionLocation
on the face of the stopperTranscription
P4Dimensions
Dimension Description
Entire Wire with nutLength
9-1/2 inDimension Description
Nut Width
5/8 inLength
1 inDimension Notes
tapers to 1/2 inLocation
Location
Display Case
Exhibit Case 10Date
January 29, 2026General Notes
Note Type
Cataloging NoteNote
Caption in the museum is: "Porter Slider nut. This ingenious device utilized two
Stoppers to make an expanding wedge and worked very well in parallel cracks as an aid tool."Create Date
January 29, 2026Update Date
February 16, 2026