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REI Tuff Stuff 4520 9/32" X 4 3/4" Swivel Square Spindle With Stop Pin P12381788REI-TUF4520 https://cdnimages.opentip.com/full/REI/REI-TUF4520.jpg Tuff Stuff 4520 9/32" X 4 3/4" Swivel Square Spindle With Stop Pin Manufacturer Part Number: 4520Tuff StuffSwivel Square Spindle 9/32" X 4-3/4" Long, W/Stop Pin 20 TpiThis sturdy spindle is designed to facilitate new or vintage doorknobs with threaded shanks of 16 TPI. Used with privacy latches and mortise locks, its hardened steel construction provides smooth operation and long-lasting wear. At 4 3/4\" in length, it\'s ideal for thicker doors. Features a standard 9/32\" thickness and stop pin for stability. 12381788 608781045205 0.1000lbs 0.00 0.00 0.00
TUFF STUFF
13.15 2027-07-05
5 EA
2555 In Stock
customer review - by , September 9, 2025
5/ 5stars
Checked locksmiths in this town for years. Couldn't find anything even with the old "shaft" in hand. Looking for a split doorknob SHAFT online. Didn't know that it was actually a split SPINDLE! Looks like a shaft to me.
customer review - by , June 6, 2023
5/ 5stars
As described
customer review - by , December 12, 2022
5/ 5stars
No issues encountered, 10 min install and the lock set was restored.
customer review - by , June 6, 2022
5/ 5stars
As you can see in the photo. The original part had seen better days. The new part was a little bit longer than the original but zero issues on install. A perfect solution to a potentially expensive issue.
customer review - by , November 11, 2021
5/ 5stars
:)

Tuff Stuff 4520 9/32" X 4-3/4" Swivel Square Spindle With Stop Pin

stars Rating 5 | 5 reviews
Brand TUFF STUFF
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UPC: 608781045205
SKU: REI-TUF4520
Unit Price: $2.63
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Min.Order Price: $13.15 for 5 units
Quantity:
2555 In Stock
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Product Description

Manufacturer Part Number: 4520

Tuff Stuff
Swivel Square Spindle 9/32" X 4-3/4" Long, W/Stop Pin 20 Tpi

This sturdy spindle is designed to facilitate new or vintage doorknobs with threaded shanks of 16 TPI. Used with privacy latches and mortise locks, its hardened steel construction provides smooth operation and long-lasting wear. At 4 3/4" in length, it's ideal for thicker doors. Features a standard 9/32" thickness and stop pin for stability.

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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Customer Reviews
5 out of 5
5 stars
5
4 stars
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3 stars
0
2 stars
0
1 stars
0
By A Customer
Date: September 22, 2025
Checked locksmiths in this town for years. Couldn't find anything even with the old "shaft" in hand. Looking for a split doorknob SHAFT online. Didn't know that it was actually a split SPINDLE! Looks like a shaft to me.
Rating: 5 stars [5 of 5 Stars!]
By Jonathan
Date: June 01, 2023
As described
Rating: 5 stars [5 of 5 Stars!]
By Buyer99
Date: December 11, 2022
No issues encountered, 10 min install and the lock set was restored.
Rating: 5 stars [5 of 5 Stars!]
By SCHUTZ.iO
Date: June 16, 2022
As you can see in the photo. The original part had seen better days. The new part was a little bit longer than the original but zero issues on install. A perfect solution to a potentially expensive issue.
Rating: 5 stars [5 of 5 Stars!]
By okm
Date: November 04, 2021
:)
Rating: 5 stars [5 of 5 Stars!]
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