What kind of hardware can I put in the center of these paper

PDF) Metrics to Characterize Data Center & IT Equipment Energy Use, Proceedings of Digital Power Forum, Richardson, TX.

My first knitting bowl, any tips or ticks for the yarn slot? : r/turning

Question: Why are there gaps in theses sliding pieces? : r/woodworking

From the Fence Post: IKEA Hack: Kid's Art Center

How to adjust off contact with these hinges? Thanks! : r/SCREENPRINTING

How to adjust off contact with these hinges? Thanks! : r/SCREENPRINTING

KOHLER Riff 5 in. (127 mm) Center-to-Center Cabinet Pull in Vibrant Polished Nickel 24435-SN - The Home Depot

Magnus Woodsmith

Printer Paper Buying Guide

The white one is the current type of pins in my guitar, how do I figure out size to get nicer looking ones? (Ones on left won't go in far enough)

Art Supply Finds: 30+ Art Supplies From the Hardware Store (and cool stuff to make with 'em) - Babble Dabble Do