A Simple Machine for making large (2 1/2″) diameter wooden screws
4.9 (136) In stock
![](https://dblaney.wordpress.com/wp-content/uploads/2011/07/img_2093-1_1_1.jpg)
![](https://i.ytimg.com/vi/Ci4POSt6n6o/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLDnJmEVGWcZnCCoroCe4wsL2kQpvA)
Self-Made Tools for Wooden Threads Part I: Dowel Maker
![](https://www.thesprucecrafts.com/thmb/kbaO47Dx8sf0rikpHJMrzw0SKRY=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/screws-in-a-wooden-board-1013661258-7cd30e3e57184f74bf23bebe9ce6489f.jpg)
How to Choose the Correct Size Wood Screws
![](https://cdn11.bigcommerce.com/s-ibk5wh0j4x/images/stencil/1280x1280/products/1961/2212/ldtc384a__27241.1643295376.jpg?c=1?imbypass=on)
3/8 x 4 Large Diameter CONFAST Zinc Plated Concrete Screw, 25/Box
Machine screws are meant to apply two metal work pieces together, with the use of a threaded pre-tapped hole or through a hole and held with a nut. They are threaded the entire length of the shank. The length of a machine screw is measured from under the head to the point of the screw.
![](https://mobileimages.lowes.com/productimages/49a96b68-00dc-4aa4-9dae-70abd0a1b0bc/01444593.jpg?size=pdhism)
Hillman #6-32 x 1-1/2-in Phillips-Drive Machine Screws (10-Count)
The LDT anchor is a high performance anchor that cuts its own threads into concrete. Available in 3/8 in and 1/2 in with and without EnvireX coating, 3/4 in and 5/8 in sizes are available with Sawtooth threads. Anchor bodies are made of hardened carbon steel and zinc plated, Grade 5. The anchors shall have a finished hex washer head with anti-rotation serrations to prevent anchor back-out. The head of the anchor is stamped with a length identification code for easy inspection.
![](https://cdn11.bigcommerce.com/s-fyrwxcl9tn/images/stencil/1280x1280/products/625/887/0000324_0__43638.1570444085.1280.1280__19424.1579793990.jpg?c=1)
Red Head LDT-3830 Large Diameter Tapcon 3/8-Inch by 3-Inch Anchor (50 per Box)
![](https://dblaney.wordpress.com/wp-content/uploads/2011/07/img_2065_1_1_1_1.jpg)
A Simple Machine to make large diameter wooden screws – cont'd
![](https://www.woodworkersjournal.com/wp-content/uploads/Wood-Screw-Technology-2.jpg)
What kind of screws for wood? Choosing the best wood screw for
Stronger design shear values than 3/8 lags. Sharp gimlet point for fast installation into wood and OSB. Aggressive thread for holding and withdrawal strength. Spider Drive offers highest level of bit engagement and drivability. Wafer head eliminates need for washer and offers increased pull through strength. Chamfer under head for increased strength. Free Spider Drive bit in every package. 50-pieces per box.
![](https://mobileimages.lowes.com/productimages/3af3f29a-fba5-4523-87a1-8a5817bd2f92/00628856.jpg)
FastenMaster HeadLok Heavy Duty Wood Screws, 0.189 x 2.875
Large Diameter Tap & Die Threading kit (1.75)
Material: High quality 304 (18-8) stainless steel, perfect strength and good corrosion resistance Thread Diameter: #4; Screw Length: 1/2 Package
![](https://m.media-amazon.com/images/I/61wx3bGKnpL._AC_UF894,1000_QL80_.jpg)
100PCS #4 x 1/2 Truss Head Sheet Metal Screws Phillips Drive Wood Screws, 304 Stainless Steel 18-8, Self Tapping
![](https://i.pinimg.com/originals/04/3d/74/043d747c1db98dc5931ae711f09c84ff.jpg)
11 Wooden screws ideas wooden, woodworking, wood screws
![](https://m.media-amazon.com/images/I/61GTiPTXgBL._AC_UF350,350_QL80_.jpg)
#4-40 x 1/2 Pan Head Machine Screws, Fully Threaded, Phillips Drive, 304 Stainless Steel 18-8, Bright Finish, Pack of 100
Wood screws are designed with aggressive threads to securely grip wood. Commonly used to join two pieces of wood tightly together or to attach hinges,
![](https://images.thdstatic.com/productImages/359a0b79-1608-4491-9200-ddd32084c9c7/svn/everbilt-wood-screws-808811-64_1000.jpg)
Everbilt #6 x 2-1/2 in. Phillips Round Head Zinc Plated Wood Screw (3-Pack) 808811 - The Home Depot
#10 x 3-3/4 PWR DRIVE EVO DUAL-ACTION PREMIUM CONSTRUCTION SCREWS - 30 PCS
DIN LING CORP. Wood Building Screws, 12 Star, Automobile Assortment