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 build with precision brass hardware — don’t settle for less!

FULLY THREADED PRECISION - M2.5 fully threaded hex fasteners provide secure, vibration-resistant connections for professional-grade builds.
PREMIUM BRASS DURABILITY - Crafted from high-quality brass ensuring corrosion resistance and long-lasting stability in your projects.
COMPREHENSIVE KIT VARIETY - Includes 30 screws, 30 nuts, and 60 spacers in multiple lengths (5mm to 20+6mm) to cover all your mounting needs.
COMPACT ORGANIZED STORAGE - Comes with a dedicated storage case to keep your components neatly sorted and ready for your next Raspberry Pi upgrade.
PERFECT FIT FOR RASPBERRY PI - Specifically designed for Raspberry Pi 3 Model B+ GPIO expansion boards with 2.75mm hole diameter for seamless assembly.

The Geekworm Raspberry Pi 120-piece M2.5 Hex Brass Spacer, Nut, and Screw Kit is a meticulously engineered accessory set tailored for Raspberry Pi 3 Model B+ and compatible models. Featuring fully threaded M2.5 metric fasteners made from durable brass, this kit offers a variety of spacer lengths to perfectly fit GPIO expansion boards. Packaged in a convenient storage case, it ensures professional, reliable assembly and long-term corrosion resistance for your DIY or professional projects.

Specifications

Material	Brass
Head Style	Hex
Item dimensions L x W x H	7.8 x 6.5 x 2 Centimeters
Exterior Finish	Brass
Thread Size	M2 5
Metal Type	Brass
Brand	Geekworm
Head Type	Hex
Item Weight	0.14 Kilograms
Thread Type	Metric
Thread Coverage	Fully Threaded
Fastener Type	Hex
Thread Style	fully threaded
Thread Class	2A
Fastener Size	M2.5 x 5mm
Size	M2.5 x 5mm
Compatible groove diameter	2.75 Millimeters
Number of Pieces	132
UPC	642940884946
Manufacturer	Geekworm
Model	TB-479042
Product Dimensions	7.8 x 6.5 x 2 cm; 140 g
Item model number	TB-479042
Batteries Included	No
Batteries Required	No
Does it contain liquid?	No
Has Auto Focus	No
Includes Rechargeable Battery	No
Programmable Buttons	No
Manufacturer	Geekworm
Country of Origin	USA
Item Weight	140 g

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