6V-7978

The Caterpillar 6V-7978 Pan Head Screw is a precision-threaded machine fastener designed for electrical, electronic, and light structural system groups. It is primarily engineered to secure electrical wiring harnesses, clip brackets, electronic control modules, and grounding straps to fixed framework structures, ensuring clean and reliable system organization.

1. Core Dimensions & Fastener Specs

Thread Size: No. 10 (0.190 in nominal)
Hole Thread Pitch: 32 threads per inch (#10-32 UNF Fine Thread)
Bolt Length: 19.05 mm (3/4 in / 0.75 in)
Head Drive Type: Cross Slot / Phillips drive configuration
Head Style Profile: Rounded Pan Head
Thread Configuration: Fine Thread

2. Material & Manufacturing Specs

Material Grade: Premium-grade carbon steel or alloy steel matrix.
Coating & Finishing: Corrosion-resistant zinc plating or phosphate finish to prevent thread seizing, degradation, and environmental rust in tight, humid control bays.
Structural Configuration: Low-profile rounded crown head engineered to distribute uniform holding clamping force across delicate electrical components without scraping or cutting adjacent wire jackets.

3. Equipment & System Compatibility

This fine-threaded machine screw is standard electrical layout hardware deployed across a diverse variety of heavy machinery networks and large engine blocks:

System Grouping: Heavily integrated into Engine Wiring Groups, Control Panel Mounting Sets, Electronic Control Modules (ECM) brackets, and sensor clamp wiring layouts.
Engine Platforms: Standard electrical mounting hardware utilized across Caterpillar medium and large-bore diesel or gas engine blocks.
Machine Frameworks: Widely deployed in structural dashboards, operator cabs, sensor junctions, and wiring conduit tracking runs across CAT excavators, off-highway mining trucks, and industrial prime power generator modules.

4. Part Cross-References