Charlie Porter Nut #2

Object/Artifact

-

Yosemite Climbing Museum

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.

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.

Name/Title

Charlie Porter Nut #2

Entry/Object ID

2026.1.69

Description

A Charlie Porter Slider Nut on swaged wire

Use

Designed to fit into narrow, tapered rock cracks, locking securely when weighted

Context

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 Collection

Category

Climbing Hardware, Nuts/Chocks

Acquisition

Accession

2026.1

Notes

Unknown Acquisition

Made/Created

Artist

Charlie Porter

Inscription/Signature/Marks

Type

Inscription

Location

on the face of the stopper

Transcription

P4

Dimensions

Dimension Description

Entire Wire with nut

Length

9-1/2 in

Dimension Description

Nut

Width

5/8 in

Length

1 in

Dimension Notes

tapers to 1/2 in

Material

Aluminum

Location

Location

Display Case

Exhibit Case 10

Date

January 29, 2026

General Notes

Note Type

Cataloging Note

Note

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, 2026

Update Date

February 16, 2026