Are these copper, or brass? specs section says material: copper. and the screws are obviously neither.

Hi friend, The standoffs/spacers are made of durable brass,screws and nuts are made of stainless steel. We have updated the material, sorry about the inconvenience. best regards, Geekworm Team

Will these cause ground loops via electrical connection to the hat/bonnet board from the thru-plated holes?

It depends. If the hat or bonnet has pads around the screw/mounting hole, you can always use nylon washers. However, some screw/mounting holes have copper pads which have no connection to ground or anything else. If in doubt use a multimeter. Or nylon washers. ... Cheers

Can these be used as standard pc spacers ?

Hi friend, The spacers are M2.5 series with follow specifications: 4 x M2.5x12+6mm Spacers 32 x M2.5 x 5mm Screws 32 x M2.5 Nuts 16 x M2.5x5 +5mm Spacers 16 x M2.5x11mm Spacers 16 x M2.5x11+6mm Spacers 16 x M2.5x20+6mm Spacers Please check and confirm if your PC use M2.5 or M3 spacers, thanks! best regards, Geekworm Team

Are these the proper dimensions for a Pi 3? I read elsewhere that the Pi 3 is 3mm...

These spacers work for me with a Pi3. The tallest spacers will clear the Pi's USB ports. The next tallest will clear all the components but not the UAT ports. The others I have not used with a Pi3.

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Description

🔧 Elevate your Raspberry Pi setup with precision and style!

PORTABLE ORGANIZED - Compact storage box means your essential installation tools are always ready, wherever you code.
COMPLETE 100 PIECE KIT - Includes spacers, nuts, screws, and a sleek storage case to keep your workspace clutter-free.
PERFECT RASPBERRY PI FIT - Tailored M2.5 spacers and screws designed for seamless Raspberry Pi 5/4B/3B+ installation.
OPTIMIZED HEIGHT FOR GPIO - 11mm spacer height matches Raspberry Pi HAT design for flawless expansion board connection.
DURABLE BRASS STAINLESS STEEL - Premium corrosion-resistant materials ensure long-lasting, reliable hardware support.

The Geekworm 100-piece M2.5 installation kit features brass hex spacers, stainless steel screws, and nuts designed specifically for Raspberry Pi models 5, 4B, 3B+, and others. With an 11mm spacer height optimized for GPIO pin expansion boards and a compact storage case, this durable, corrosion-resistant kit ensures professional-grade assembly and organized portability for makers and tech enthusiasts.

Specifications

Material	Brass
Head Style	Hex
Exterior Finish	Stainless Steel,Brass
Thread Size	M2.5
Metal Type	Brass, Stainless Steel
Brand	Geekworm
Color	Raspberry Pi M2.5 100Pcs / Lot
Head Type	Hex
Item Weight	0.14 Kilograms
Thread Coverage	Fully Threaded
Fastener Type	spacers standoffs screws nuts
Set Screw Thread Type	Metric (M)
Thread Style	Left Hand
Fastener Size	M2.5
Size	One Size
Item Diameter	2.5 Millimeters
Compatible groove diameter	2.5 Millimeters
Number of Pieces	132
UPC	642940884946
Item model number	TB-479042
Hardware Platform	Raspberry Pi 3 Model B+ / Pi3 B / 2B / Raspberry Pi Zero w
Item Weight	4.9 ounces
Item Dimensions LxWxH	3.07 x 2.56 x 0.79 inches
Manufacturer	Geekwrom
ASIN	B0756CW6Y2
Is Discontinued By Manufacturer	No
Date First Available	August 28, 2017

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