SCREW PITCH GAUGE

Screw Pitch Gauge – Model SPG This product is available in different models. Common models are the 28 leaves 4-80 pitch, 30 leaves 4-42 pitch, and 30 leaves 3.5-60 pitch-55 degrees whit-worth. Narrow leaf design allows checking both external and internal threads -even in small holes not accessible with wide leaf type gauges.

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SCREW PITCH GAUGE

Product Overview

The Screw Pitch Gauge (Model SPG) is a precision industrial tool designed for accurate measurement and verification of thread pitches. Featuring a narrow leaf design, this gauge enables the inspection of both external and internal threads, including in small holes that are not accessible with standard wide leaf-type gauges.

Key Features & Capabilities

Dual-System Measurement: Designed for both Whitworth ($55^\circ$) and metric ($60^\circ$) thread profiles.
Narrow Leaf Design: Permits easy access and measurement of internal and external threads within restricted spaces and small bores.
Multiple Model Configurations: Available in varied leaf counts and pitch ranges to suit specific threading requirements.

Technical Specifications

Parameter	Specification
Product Name	Screw Pitch Gauge
Model	SPG
Available Leaf / Pitch Configurations	• 28 leaves (4–80 pitch)<br>• 30 leaves (4–42 pitch)<br>• 30 leaves (3.5–60 pitch)
Thread Profile Angle	$55^\circ$ Whitworth / Metrisch ($60^\circ$)
Design Type	Narrow leaf design for internal and external threads