The short answer is yes. Most lag bolts are made of fairly soft material (relatively speaking). If the GRK cabinet screws are anything like structural screws, they are hardened and significantly stronger than lag bolts of the same size.
Cabinet screws, which can go by different names like washer-head screws, or button-head screws, are made for the purpose of securing kitchen wall cabinets to the wall. The larger head on a cabinet screw bears down on the cabinet's hanging strip/rail which ensures a sturdy installation.
Yes. Cabinet screws have a nice wide flat head to spread the load out. Drywall screws are tapered to sink below the surface and hide. Honestly... I've owned many apartment kitchens that were installed with drywall screws and if everything is tight and secure it will be fine.
Pocket screws let you assemble perfect, indestructible cabinet joints without expensive woodworking tools or complicated jigs—a huge leap forward for beginning woodworkers.
According to the Kitchen Cabinet Manufacturers Association, the weight limit of the average kitchen cabinet is 600 pounds. It sounds like a lot, but keep in mind this is an average for the entire overhead cabinet unit (not per shelf).
Each screw in a stud can hold ~80-100 lbs, you have 8.
Replace the shelf with a stronger material such as plywood or MDF. Reinforce the cabinet by adding additional supports or brackets to the cabinet itself.
For the size, a #8 or #10 screw is typically used for cabinets. The gauge will depend on the weight of the cabinet and its contents. Heavier cabinets or those expected to hold much weight will require a thicker gauge screw for increased holding power.
The difference between “pocket screws” and “cabinet screws” is the shape of the head. In nearly every case, both are just as effective when used in building cabinetry and furniture. The “pocket” refers to the way the joint is held together by the screw.
Cabinet screws are the obvious first choice. Also known as washer-head or button-head screws, their main feature is a large diameter head that creates a larger contact surface between screw and cabinet. Increasing contact surface also increases holding power.
You can also anchor the cabinet to the drywall using French cleats or toggle screws, but only if you also secure it to a stud. Heavy cabinetry shouldn't be attached solely to drywall.
Substitute 1/2″ plywood directly behind where the cabinets will be, taping the joints between the drywall and plywood. This will substantially simplify hanging cabinets later - allowing cabinet support screws to be secured wherever it is optimum for the installer.
Cabinets often contain strips of wood near the top and bottom that should be used to hang the cabinets. Make sure that you drill holes through these pieces of wood. Apply screws. Drive two-inch or three-inch wood screws through the pilot holes into the studs.
PHEINOX RSS Screws are so corrosive and high-performing that GRK offers a lifetime guarantee against staining and rusting. They come from hardened steel for optimum strength and durability, and their corrosion resistance makes them a great option for projects in coastal areas and below ground.
Flat mounted hooks and anchors may be able to hold up to 50 pounds, while drywall screws can hold about 20 pounds of weight. To support up to 100 pounds on drywall, make sure to find the wall studs, then mount the object using metal anchors and screws.
I see some good points other woodworkers have made about bridging one piece to another, but for strength, pocket holes are strong enough for the cabinets I construct.
If you make furniture using pocket holes, I'd recommend not filling in the pockets so that you can re-tighten the screws if necessary. The dowel joints were 1.5x stronger than the pocket hole joints.
The holes for the pocket hole screws in your table may be big enough to allow the wood to move. It could be as simple as wiggling the bit around after the hole is drilled and not tightening the screw all the way up.
10 wood screw has a larger diameter than a No. 8 wood screw. The larger the number, the larger the diameter of the screw.
Screwing the cabinets to the wall, use minimum 2 ½” long screw.
Alternative methods for installing wall cabinets without relying solely on studs include the French cleat system, toggle bolts or Molly bolts, wall anchors, horizontal blocking, cleats or rails, and adhesive mounting. The French cleat system provides secure and adjustable installation.
Mortise and tenon joints are some of the strongest and most popular cabinet joints. They're made up of two wood pieces that work together to lock the pieces into place. The tenon has a piece of wood sticking out from its base, while the mortise has a slot for the tenon to slide into it.
Reinforcement should start with the bases. If adjustable plastic legs support the cabinets, we remove the legs and replace them with frames made of a double thickness of 3/4-in. plywood. If the cabinets have integral kick frames, we reinforce those frames with 3/4-in.
Solid, full-height plywood The most durable cabinet construction uses a heavy (3/8-inch or more), full-plywood, full-back panel. This panel allows the cabinet to be directly attached to the studs of the wall at any point on the cabinet back.