what diameter should the through hole be (after plating) ?

The pins are 0.96mm corner to corner, so a 1mm through hole should be sufficient depending on your hole placement tolerance.

What is the actual center to center pin spacing? The product description says 5mm & 0.2 inches. It can't be both. So which is it?

Well, math says: 0.2 inches x 25.4mm/inch = 5.08mm 5mm or 5.08mm same product, just shorthand.

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Tnisesm/70pcs 2Pin & 3Pin 5mm/0.2" Pitch PCB Mount Screw Terminal Block Connector (Splicable) TN-T03B

Product ID: 780765288

Details

Connector type
Screw
Mounting type
PCB Mount
Material
Plastic
Colour
Blue (70pcs)
Brand
Tnisesm

⚡AC 300V, 10A rated power

🔩5mm pitch precision

🧰70pcs all-in-one kit

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KD 8.86

Duties & taxes included

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Sold byAmazon KUWAITDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Connect with confidence — power your projects like a pro!

COMPLETE DIY KIT - Comes with 70 connectors plus a Phillips screwdriver in a handy plastic case for instant use.
PRECISION 5 MM PITCH - Engineered for seamless PCB integration with industry-standard spacing.
VERSATILE 2 3 PIN OPTIONS - Includes both 2-pin and 3-pin connectors to fit diverse wiring needs.
UNIVERSAL WIRE COMPATIBILITY - Compatible with 14-22 AWG wires, perfect for professional and hobbyist projects alike.
HIGH VOLTAGE CURRENT RATING - Supports up to AC 300V and 10A for reliable, heavy-duty connections.

The Tnisesm 70-piece PCB Mount Screw Terminal Block Connector kit offers precision 5mm pitch connectors rated for AC 300V and 10A, supporting 14-22 AWG wires. This versatile set includes 60 two-pin and 10 three-pin connectors plus a Phillips screwdriver, all neatly packed for easy access, making it ideal for electronics professionals and DIY enthusiasts aiming for reliable, high-quality circuit connections.

Specifications

ASIN	B088LVP6ML
Best Sellers Rank	#30,784 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in Screw Terminals
Brand Name	Tnisesm
Color	Blue(70 Pcs)
Connector Type	Screw
Current Rating	10 Amps
Customer Reviews	4.6 4.6 out of 5 stars (566)
Gauge	14.0
Manufacturer	Tnisesm
Material Type	Plastic
Model	CATN-T03B
Mounting Type	PCB Mount
Number Of Contacts	70
Number Of Poles	2
Number of Positions	140
Part Number	CATN-T03B
Pitch	5 Millimeters
Voltage	300 Volts

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