Found in a pile of building supplies (mostly stuff for a drop ceiling). It is steel and when you loosen or tighten the threads the blade moves up and down. I say

A Study in Steel Sebastien de Castell

Lockdown Poems - Ledbury Poetry

The Winbag MAX is a heavy-duty inflatable leveling shim designed to help with window, door, cabinet, countertops and other household appliance installations. The Winbag MAX is designed slide into very tight gaps easily and has a maximum load capacity of 550 lbs. It features a hand operated pump which inflates the air cushion and holds the heavy objects when leveling. In addition, the Winbag MAX is made from material that is gentle on work surfaces and won’t leave behind scratches.

Winbag Max Lifting Tool

Weekend Quickies (Small DIY projects), Page 3

Steel Construction 01/2013 Free Sample Copy by Ernst & Sohn - Issuu

weaving Archives - Josefin Waltin spinner

How to Study Paintings by Libraries of Hope - Issuu

6-Spray Patterns 23 in. Wall Mount Dual Shower Heads 3-Jet Hand Shower Mixer Shower System Combo Set in Matte Black

56 Essential Survival Skills for Homeowners - This Old House

Solved Required information The upside-down steel A frame