In general, a screw can hold 80-100 pounds. Several factors can impact on the amount of weight the screw can hold. This includes the length of the screw, the type of thread, the quality of the screw, the way it was inserted, and the type of forces that will be acting on it.

German engineered and American made, SPAX® PowerLags® are professional grade structural screws and sold in job-friendly package quantities, including bulk pails.

The longer the screw, the better it will hold the surfaces being joined into a unit. Deck screws are not designed to resist shear like bolts and bolted joints are. That being said, most screws can hold between 75-125 pounds with more quality deck screws being able to hold above 200 pounds per screw.

When deciding between nails and screws, keep in mind that nails are less brittle, so they provide greater shear strength. Screws, on the other hand, may not be as forgiving, but their threaded shafts hold better in wood and draw boards together much more tightly and they have greater tensile strength.

Sizes up to 1/4″, torque in inch-pounds

Increasing the Weight, a Stud Can Hold A screw in a stud can usually hold 80-100 lbs, but there are tricks to increase the amount of weight it can hold.

Increased corrosion protection YELLOX SPAX screws achieve corrosion protection that is more than 6 times greater than that offered by blue zinc plating at the same surface thickness (layer thickness of 4-6µm with artificial atmospheric corrosion).

SPAX Pan Head Construction Screws provide excellent draw down and holding performance in multiple materials where a flush or countersunk installation is not possible or desired. For use with either a Phillips or Square Drive bit.

The shear strength of a bolt is a measurement of the minimum amount of force needed to break the bolt into two pieces. The shear strength of a metal bolt is approximately 0.6 times its tensile strength. A bolt commonly shears where its head meets the threads.

Nails have tremendous strength in shear, but are subject to pull-out. This is why nails are never used where subject to withdrawal forces, like a deck ledger. Screw are very resistant to pull-out, but are weak in shear. So no, we would not frame a house with deck or drywall screws.

How Much Weight Can An Eye Bolt Hold?

Note: HCR-X™ from SPAX® is typically grey/silver in color. What are SPAX® screws made of? Excluding our 304 series stainless steel line, all of the SPAX® fasteners are heat treated to Grade 5 durability carbon steel, from the small #6 diameter fasteners up to the ½” diameter PowerLags®.

Eliminate pre-drilling, increase driving torque without the risk of stripping with SPAX ® PowerLags. Each precision engineered fastener, multi-purpose screw, and PowerLags ® structural screws helps you move faster on the job site, while driving greater confidence.

Available in 1/4”, 5/16”, and 3/8” diameters, and in lengths up to 10”. SPAX HCR ® Coating is approved for use in treated lumber. Provides maximum driver engagement, especially when using larger diameter/longer length parts in harder wood species.

No pre-drilling is referencing application with hardwoods — not concrete. Concrete applications require pre-drilling with a carbide bit before installing the SPAX® fastener. Required hole size is published on the back of our product packaging. Are there any tips to using SPAX® fasteners in concrete?