Starrett
Starrett PT99004 Lock Bolt Assembly replacement part
Steel lock bolt assembly replaces worn hardware on compatible test equipment
- TypeReplacement Parts
- Durable steel construction ensures long service life
- Direct replacement restores original tool function
- Compatible with multiple Grainger item numbers
- New condition guarantees factory-fresh reliability
- Starrett quality trusted by professionals worldwide
What It Is
The Starrett PT99004 Lock Bolt Assembly is a steel replacement part for test and measurement tools. It fits a wide range of Grainger item numbers including 26Y945, 26Y946, 26Y947, 26Y954, 26Y955, 26Y963, 26Y964, 26Y969, 26Y971, 26Y981, 26Y982, 26Y990, 26Y991, 26Y992, 26Y993, 26Y994, 26Y999, 26Z003, 26Z011, 26Z019, 26Z024, 26Z027, 26Z037, 26Z045, 26Z050, 26Z053, 2ZUP8, 2ZUP9, 2ZUR2, 5UAP8, 6NAY9.
Sustained Use
The steel construction maintains dimensional stability during repeated locking and unlocking cycles. It resists deformation under continuous mechanical load in compatible instruments. No performance degradation is expected over the service life of the host tool.
Thermals Noise Power
The assembly operates passively without generating heat or noise. It draws no electrical power and adds no thermal load to the instrument. Normal use produces no audible sound from the part itself.
Highlights
- Durable steel construction ensures long service life
- Direct replacement restores original tool function
- Compatible with multiple Grainger item numbers
- New condition guarantees factory-fresh reliability
- Starrett quality trusted by professionals worldwide
Specifications
| Brand | STARRETT |
|---|---|
| Type | Replacement Parts |
Questions about this item
Does the PT99004 Lock Bolt Assembly generate any heat or noise during continuous use?
The steel replacement part is a passive mechanical component with no moving electrical parts, so it produces no heat and makes no audible noise when installed.
Which existing Starrett tools must I already own for the PT99004 to function?
It fits Grainger item numbers 26Y945, 26Y946, 26Y947, 26Y954, 26Y955, 26Y963, 26Y964, 26Y969, 26Y971, 26Y981, 26Y982, 26Y990, 26Y991, 26Y992, 26Y993, 26Y994, 26Y999, 26Z003, 26Z011, 26Z019, 26Z024, 26Z027, 26Z037, 26Z045, 26Z050, 26Z053, 2ZUP8, 2ZUP9, 2ZUR2, 5UAP8 and 6NAY9.
Will the PT99004 work with older Starrett instruments I still use?
Yes, the lock bolt assembly is designed as a direct replacement for the listed Grainger item numbers, which cover many legacy Starrett test and measurement tools.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Keson MP301 Measuring Wheel Orange Tubular Steel Frame Metal Spoked Wheel 999Ft
Bazarc Auto Lock Inspection Loop Amber/Blue measurement tool
- Amber/Blue



