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STARRETT Case (empty): Lock Bolt, Smooth, Steel - Protractor & Machinist Square Parts & Accessories
STARRETTProtractor & Machinist Square Parts & Accessories

STARRETT Case (empty): Lock Bolt, Smooth, Steel

The STARRETT Case (empty) is a protractor and machinist square part and accessory, specifically a Lock Bolt. It is constructed of smooth steel and is compatible with a 12-inch blade length. The product carries the…

SKU 3G-OTH-407486

Brand
STARRETT
Item
Case
Category
Protractor & Machinist Square Parts & Accessories
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Technical Specifications

STARRETT
Manufacturer Part Number
PT22658
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STARRETT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The STARRETT Case (empty) is a protractor and machinist square part and accessory, specifically a Lock Bolt. It is constructed of smooth steel and is compatible with a 12-inch blade length. The product carries the manufacturer part number PT22658 and is identified by model C435-12-4R and catalog number 2ZUR4.

Frequently Asked Questions

What is the STARRETT Case (empty) PT22658 used for?

The STARRETT Case (empty) PT22658 is a lock bolt accessory for protractors and machinist squares. It secures the blade in position during precision measurement tasks. This smooth steel component is compatible with 12-inch blades, making it suitable for layout, inspection, and toolroom applications where repeatable angular accuracy is required.

What are the specifications of the STARRETT PT22658 lock bolt?

The STARRETT PT22658 is a lock bolt made of smooth steel. It is designed for use with a 12-inch compatible blade length. The model is C435-12-4R and the catalog number is 2ZUR4. As an empty case component, it serves as a replacement part for STARRETT protractors and machinist squares.

Where to buy STARRETT PT22658 worldwide?

3G Electric supplies the STARRETT PT22658 lock bolt worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this genuine STARRETT replacement part for your precision measurement tools.

How to install the STARRETT lock bolt on a protractor?

To install the STARRETT lock bolt, first ensure the protractor or square is clean. Insert the bolt through the blade slot and thread it into the mating nut or body. Tighten firmly by hand until the blade is secured without movement. Avoid over-tightening to prevent damage to the smooth steel surface. Refer to the tool manual for torque specifications.

Used in

Common applications for STARRETT
Structural steel fabrication — TENNAX™-PRO bi-metal band saw blades for cutting beams and channels
Stainless steel pipe cutting — Advanz™ CS carbide-tipped band saw blades for abrasive material
Aluminum extrusion cutting — Duratec™ SFB carbon steel band saw blades for soft metals
General metalworking maintenance — Intenss™ PRO-DIE high-speed steel band saw blades for mixed metals
Hard alloy tool steel cutting — Intenss™ PRO bi-metal band saw blades with hook edge
Wood and non-ferrous material sawing — Duratec™ SFB carbon steel blades for multi-material shops

STARRETT Products

3G Electric supplies STARRETT protractor & machinist square parts & accessories. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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